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Implement Array.prototype.findLast and Array.prototype.findLastIndex
https://bugs.webkit.org/show_bug.cgi?id=227939 Reviewed by Yusuke Suzuki. JSTests: * stress/typedarray-findLast.js: Added. (keepEven): (keepEvenAndChange): (isBigEnoughAndException): * stress/typedarray-findLastIndex.js: Added. (keepEven): (keepEvenAndChange): (isBigEnoughAndException): Source/JavaScriptCore: * builtins/ArrayPrototype.js: (findLast): Added. (findLastIndex): Added. (JSC::ArrayPrototype::finishCreation): * runtime/JSTypedArrayViewPrototype.cpp: * builtins/TypedArrayPrototype.js: (findLast): Added. (findLastIndex): Added. * runtime/ArrayPrototype.cpp: (JSC::JSTypedArrayViewPrototype::finishCreation): * runtime/OptionsList.h: Source/WebInspectorUI: * UserInterface/Models/NativeFunctionParameters.js: LayoutTests: * js/array-findLast.html: Added. * js/array-findLast-expected.txt: Added. * js/script-tests/array-findLast.js: Added. (passUndefined): (passZero): (passNull): (passFalse): (passEmptyString): (passEven): (passAfter5): (toObject): (findItemAddedDuringSearch): (numberOfCallbacksInFindInArrayWithHoles): (throwError): * js/array-findLastIndex.html: Added. * js/array-findLastIndex-expected.txt: Added. * js/script-tests/array-findLastIndex.js: Added. (passUndefined): (passZero): (passNull): (passFalse): (passEmptyString): (passEven): (passAfter5): (toObject): (findItemAddedDuringSearch): (numberOfCallbacksInFindIndexInArrayWithHoles): (throwError): Canonical link: https://commits.webkit.org/239681@main git-svn-id: https://svn.webkit.org/repository/webkit/trunk@279937 268f45cc-cd09-0410-ab3c-d52691b4dbfc
1 parent b512e5b commit dea74fd

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‎JSTests/ChangeLog‎

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2021-07-14 Devin Rousso <drousso@apple.com>
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Implement Array.prototype.findLast and Array.prototype.findLastIndex
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https://bugs.webkit.org/show_bug.cgi?id=227939
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Reviewed by Yusuke Suzuki.
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* stress/typedarray-findLast.js: Added.
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(keepEven):
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(keepEvenAndChange):
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(isBigEnoughAndException):
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* stress/typedarray-findLastIndex.js: Added.
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(keepEven):
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(keepEvenAndChange):
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(isBigEnoughAndException):
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118
2021-07-14 Keith Miller <keith_miller@apple.com>
219

320
Unreviewed, test gardening.

‎JSTests/stress/typedarray-findLast.js‎

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//@ requireOptions("--useArrayFindLastMethod=true")
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load("./resources/typedarray-test-helper-functions.js", "caller relative");
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description(
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"This test checks the behavior of the TypedArray.prototype.findLast function"
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);
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shouldBe("Int32Array.prototype.findLast.length", "1");
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shouldBe("Int32Array.prototype.findLast.name", "'findLast'");
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shouldBeTrue("isSameFunctionForEachTypedArrayPrototype('findLast')");
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shouldBeTrue("testPrototypeReceivesArray('findLast', [undefined, this, { }, [ ], true, ''])");
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debug("");
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debug("testPrototypeFunction has the following arg list (name, args, init, result [ , expectedArray ])");
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debug("");
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debug("1.0 Single Argument Testing");
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function keepEven(e, i) {
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return !(e & 1) || (this.keep ? this.keep === i : false);
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}
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shouldBeTrue("testPrototypeFunction('findLast', '(keepEven)', [12, 5, 8, 13, 44], 44)");
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shouldBeTrue("testPrototypeFunction('findLast', '(keepEven)', [11, 13, 17, 13, 22], 22)");
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shouldBeTrue("testPrototypeFunction('findLast', '(keepEven)', [22, 13, 17, 13, 11], 22)");
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shouldBeTrue("testPrototypeFunction('findLast', '(keepEven)', [11, 13, 17, 13, 11], undefined)");
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debug("");
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debug("2.0 Two Argument Testing");
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var thisValue = { keep: 3 };
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shouldBeTrue("testPrototypeFunction('findLast', '(keepEven, thisValue)', [11, 23, 11, 1, 44], 44)");
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shouldBeTrue("testPrototypeFunction('findLast', '(keepEven, thisValue)', [11, 23, 11, 1, 43], 1)");
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debug("");
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debug("3.0 Array Element Changing");
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function keepEvenAndChange(e, i, a) {
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a[a.length - 1 - i] = 5;
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return !(e & 1);
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}
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shouldBeTrue("testPrototypeFunction('findLast', '(keepEvenAndChange)', [11, 15, 3, 12, 44], 44, [5, 15, 3, 12, 44])");
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shouldBeTrue("testPrototypeFunction('findLast', '(keepEvenAndChange)', [44, 12, 3, 15, 11], undefined, [5, 5, 5, 5, 5])");
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debug("");
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debug("4.0 Exception Test");
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function isBigEnoughAndException(element, index, array) {
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if(index==3) throw "exception from function";
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return (element == 44);
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}
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shouldBeTrue("testPrototypeFunction('findLast', '(isBigEnoughAndException)', [12, 15, 10, 13, 44], 44)");
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shouldThrow("testPrototypeFunction('findLast', '(isBigEnoughAndException)', [9, 15, 10, 13, 43], false)");
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debug("");
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debug("5.0 Wrong Type for Callback Test");
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shouldThrow("testPrototypeFunction('findLast', '(8)', [12, 15, 10, 13, 44], false)", "'TypeError: TypedArray.prototype.findLast callback must be a function'");
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shouldThrow("testPrototypeFunction('findLast', '(\"wrong\")', [12, 15, 10, 13, 44], false)", "'TypeError: TypedArray.prototype.findLast callback must be a function'");
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shouldThrow("testPrototypeFunction('findLast', '(new Object())', [12, 15, 10, 13, 44], false)", "'TypeError: TypedArray.prototype.findLast callback must be a function'");
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shouldThrow("testPrototypeFunction('findLast', '(null)', [12, 15, 10, 13, 44], false)", "'TypeError: TypedArray.prototype.findLast callback must be a function'");
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shouldThrow("testPrototypeFunction('findLast', '()', [12, 15, 10, 13, 44], false)", "'TypeError: TypedArray.prototype.findLast callback must be a function'");
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debug("");
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finishJSTest();

‎JSTests/stress/typedarray-findLastIndex.js‎

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//@ requireOptions("--useArrayFindLastMethod=true")
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load("./resources/typedarray-test-helper-functions.js", "caller relative");
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description(
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"This test checks the behavior of the TypedArray.prototype.findLastIndex function"
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);
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shouldBe("Int32Array.prototype.findLastIndex.length", "1");
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shouldBe("Int32Array.prototype.findLastIndex.name", "'findLastIndex'");
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shouldBeTrue("isSameFunctionForEachTypedArrayPrototype('findLastIndex')");
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shouldBeTrue("testPrototypeReceivesArray('findLastIndex', [undefined, this, { }, [ ], true, ''])");
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debug("");
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debug("testPrototypeFunction has the following arg list (name, args, init, result [ , expectedArray ])");
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debug("");
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debug("1.0 Single Argument Testing");
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function keepEven(e, i) {
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return !(e & 1) || (this.keep ? this.keep === i : false);
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}
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shouldBeTrue("testPrototypeFunction('findLastIndex', '(keepEven)', [12, 5, 8, 13, 44], 4)");
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shouldBeTrue("testPrototypeFunction('findLastIndex', '(keepEven)', [11, 13, 17, 13, 22], 4)");
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shouldBeTrue("testPrototypeFunction('findLastIndex', '(keepEven)', [22, 13, 17, 13, 11], 0)");
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shouldBeTrue("testPrototypeFunction('findLastIndex', '(keepEven)', [11, 13, 17, 13, 11], -1)");
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debug("");
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debug("2.0 Two Argument Testing");
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var thisValue = { keep: 3 };
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shouldBeTrue("testPrototypeFunction('findLastIndex', '(keepEven, thisValue)', [11, 23, 11, 1, 44], 4)");
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shouldBeTrue("testPrototypeFunction('findLastIndex', '(keepEven, thisValue)', [11, 23, 11, 1, 43], 3)");
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debug("");
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debug("3.0 Array Element Changing");
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function keepEvenAndChange(e, i, a) {
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a[a.length - 1 - i] = 5;
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return !(e & 1);
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}
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shouldBeTrue("testPrototypeFunction('findLastIndex', '(keepEvenAndChange)', [11, 15, 3, 12, 44], 4, [5, 15, 3, 12, 44])");
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shouldBeTrue("testPrototypeFunction('findLastIndex', '(keepEvenAndChange)', [44, 12, 3, 15, 11], -1, [5, 5, 5, 5, 5])");
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debug("");
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debug("4.0 Exception Test");
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function isBigEnoughAndException(element, index, array) {
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if(index==3) throw "exception from function";
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return (element >= 44);
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}
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shouldBeTrue("testPrototypeFunction('findLastIndex', '(isBigEnoughAndException)', [12, 15, 10, 13, 44], 4)");
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shouldThrow("testPrototypeFunction('findLastIndex', '(isBigEnoughAndException)', [9, 15, 10, 13, 43], false)");
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debug("");
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debug("5.0 Wrong Type for Callback Test");
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shouldThrow("testPrototypeFunction('findLastIndex', '(8)', [12, 15, 10, 13, 44], false)", "'TypeError: TypedArray.prototype.findLastIndex callback must be a function'");
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shouldThrow("testPrototypeFunction('findLastIndex', '(\"wrong\")', [12, 15, 10, 13, 44], false)", "'TypeError: TypedArray.prototype.findLastIndex callback must be a function'");
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shouldThrow("testPrototypeFunction('findLastIndex', '(new Object())', [12, 15, 10, 13, 44], false)", "'TypeError: TypedArray.prototype.findLastIndex callback must be a function'");
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shouldThrow("testPrototypeFunction('findLastIndex', '(null)', [12, 15, 10, 13, 44], false)", "'TypeError: TypedArray.prototype.findLastIndex callback must be a function'");
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shouldThrow("testPrototypeFunction('findLastIndex', '()', [12, 15, 10, 13, 44], false)", "'TypeError: TypedArray.prototype.findLastIndex callback must be a function'");
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debug("");
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finishJSTest();

‎LayoutTests/ChangeLog‎

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2021-07-14 Devin Rousso <drousso@apple.com>
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Implement Array.prototype.findLast and Array.prototype.findLastIndex
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https://bugs.webkit.org/show_bug.cgi?id=227939
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Reviewed by Yusuke Suzuki.
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* js/array-findLast.html: Added.
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* js/array-findLast-expected.txt: Added.
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* js/script-tests/array-findLast.js: Added.
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(passUndefined):
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(passZero):
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(passNull):
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(passFalse):
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(passEmptyString):
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(passEven):
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(passAfter5):
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(toObject):
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(findItemAddedDuringSearch):
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(numberOfCallbacksInFindInArrayWithHoles):
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(throwError):
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* js/array-findLastIndex.html: Added.
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* js/array-findLastIndex-expected.txt: Added.
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* js/script-tests/array-findLastIndex.js: Added.
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(passUndefined):
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(passZero):
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(passNull):
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(passFalse):
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(passEmptyString):
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(passEven):
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(passAfter5):
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(toObject):
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(findItemAddedDuringSearch):
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(numberOfCallbacksInFindIndexInArrayWithHoles):
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(throwError):
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138
2021-07-14 Eric Hutchison <ehutchison@apple.com>
239

340
Update expectations for webanimations/multiple-transform-properties-and-multiple-transform-properties-animation-with-delay-on-forced-layer.html.

‎LayoutTests/js/array-findLast-expected.txt‎

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Tests for Array.prototype.findLast
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On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
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PASS Array.prototype.findLast.length is 1
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PASS Array.prototype.findLast.name is 'findLast'
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PASS [undefined, 0, null, false, ''].findLast(passUndefined) is undefined
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PASS [undefined, 0, null, false, ''].findLast(passZero) is 0
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PASS [undefined, 0, null, false, ''].findLast(passNull) is null
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PASS [undefined, 0, null, false, ''].findLast(passFalse) is false
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PASS [undefined, 0, null, false, ''].findLast(passEmptyString) is ''
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PASS [0,1,2,3,4,5,6,7,8,9].findLast(passEven) is 8
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PASS [0,1,2,3,4,5,6,7,8,9].findLast(passAfter5) is 9
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PASS [0, null, false, ''].findLast(passUndefined) is undefined
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PASS [undefined, 0, false, ''].findLast(passNull) is undefined
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PASS [undefined, 0, null, ''].findLast(passFalse) is undefined
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PASS [undefined, 0, null, false].findLast(passEmptyString) is undefined
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PASS [1,3,5,7,9].findLast(passEven) is undefined
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PASS [0,1,2,3,4].findLast(passAfter5) is undefined
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PASS [undefined, null, false, ''].findLast(passZero) is undefined
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Array with holes
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PASS (new Array(20)).findLast(passUndefined) is undefined
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PASS arrayWithHoles.findLast(passUndefined) is undefined
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PASS arrayWithHoles.findLast(passZero) is 0
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PASS arrayWithHoles.findLast(passNull) is null
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PASS arrayWithHoles.findLast(passFalse) is false
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PASS arrayWithHoles.findLast(passEmptyString) is ''
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PASS arrayWithHoles.findLast(passAfter5) is ''
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Generic Object
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PASS toObject([undefined, 0, null, false, '']).findLast(passUndefined) is undefined
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PASS toObject([undefined, 0, null, false, '']).findLast(passZero) is 0
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PASS toObject([undefined, 0, null, false, '']).findLast(passNull) is null
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PASS toObject([undefined, 0, null, false, '']).findLast(passFalse) is false
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PASS toObject([undefined, 0, null, false, '']).findLast(passEmptyString) is ''
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PASS toObject([0, null, false, '']).findLast(passUndefined) is undefined
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PASS toObject([undefined, 0, false, '']).findLast(passNull) is undefined
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PASS toObject([undefined, 0, null, '']).findLast(passFalse) is undefined
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PASS toObject([undefined, 0, null, false]).findLast(passEmptyString) is undefined
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PASS toObject([undefined, null, false, '']).findLast(passZero) is undefined
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PASS toObject(new Array(20)).findLast(passUndefined) is undefined
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Array-like object with invalid lengths
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PASS var obj = { 0: 1, 1: 2, 2: 3, length: 0 }; Array.prototype.findLast.call(obj, throwError) is undefined.
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PASS var obj = { 0: 1, 1: 2, 2: 3, length: -0 }; Array.prototype.findLast.call(obj, throwError) is undefined.
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PASS var obj = { 0: 1, 1: 2, 2: 3, length: -3 }; Array.prototype.findLast.call(obj, throwError) is undefined.
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Modification during search
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PASS [0,1,2,3,4,5,6,7,8,9].findLast(findItemAddedDuringSearch) is undefined
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PASS [0,1,2,3,4,5,6,7,8,9].findLast(findItemRemovedDuringSearch) is undefined
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Exceptions
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PASS Array.prototype.findLast.call(undefined, function() {}) threw exception TypeError: Array.prototype.findLast requires that |this| not be null or undefined.
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PASS Array.prototype.findLast.call(null, function() {}) threw exception TypeError: Array.prototype.findLast requires that |this| not be null or undefined.
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PASS [].findLast(1) threw exception TypeError: Array.prototype.findLast callback must be a function.
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PASS [].findLast('hello') threw exception TypeError: Array.prototype.findLast callback must be a function.
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PASS [].findLast([]) threw exception TypeError: Array.prototype.findLast callback must be a function.
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PASS [].findLast({}) threw exception TypeError: Array.prototype.findLast callback must be a function.
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PASS [].findLast(null) threw exception TypeError: Array.prototype.findLast callback must be a function.
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PASS [].findLast(undefined) threw exception TypeError: Array.prototype.findLast callback must be a function.
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Callbacks in the expected order and *not* skipping holes
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findLast callback called with index 7
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findLast callback called with index 6
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findLast callback called with index 5
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findLast callback called with index 4
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findLast callback called with index 3
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findLast callback called with index 2
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findLast callback called with index 1
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findLast callback called with index 0
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PASS numberOfCallbacksInFindInArrayWithHoles() is 8
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PASS successfullyParsed is true
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TEST COMPLETE
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‎LayoutTests/js/array-findLast.html‎

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<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN"><!-- webkit-test-runner [ jscOptions=--useArrayFindLastMethod=true ] -->
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<html>
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<head>
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<script src="../resources/js-test-pre.js"></script>
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</head>
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<body>
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<script src="script-tests/array-findLast.js"></script>
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<script src="../resources/js-test-post.js"></script>
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</body>
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</html>

‎LayoutTests/js/array-findLastIndex-expected.txt‎

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Tests for Array.prototype.findLastIndex
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On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
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PASS Array.prototype.findLastIndex.length is 1
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PASS Array.prototype.findLastIndex.name is 'findLastIndex'
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PASS [undefined, 0, null, false, ''].findLastIndex(passUndefined) is 0
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PASS [undefined, 0, null, false, ''].findLastIndex(passZero) is 1
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PASS [undefined, 0, null, false, ''].findLastIndex(passNull) is 2
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PASS [undefined, 0, null, false, ''].findLastIndex(passFalse) is 3
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PASS [undefined, 0, null, false, ''].findLastIndex(passEmptyString) is 4
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PASS [0,1,2,3,4,5,6,7,8,9].findLastIndex(passEven) is 8
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PASS [0,1,2,3,4,5,6,7,8,9].findLastIndex(passAfter5) is 9
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PASS [0, null, false, ''].findLastIndex(passUndefined) is -1
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PASS [undefined, 0, false, ''].findLastIndex(passNull) is -1
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PASS [undefined, 0, null, ''].findLastIndex(passFalse) is -1
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PASS [undefined, 0, null, false].findLastIndex(passEmptyString) is -1
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PASS [1,3,5,7,9].findLastIndex(passEven) is -1
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PASS [0,1,2,3,4].findLastIndex(passAfter5) is -1
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PASS [undefined, null, false, ''].findLastIndex(passZero) is -1
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Array with holes
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PASS (new Array(20)).findLastIndex(passUndefined) is 19
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PASS arrayWithHoles.findLastIndex(passUndefined) is 6
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PASS arrayWithHoles.findLastIndex(passZero) is 1
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PASS arrayWithHoles.findLastIndex(passNull) is 3
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PASS arrayWithHoles.findLastIndex(passFalse) is 5
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PASS arrayWithHoles.findLastIndex(passEmptyString) is 7
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PASS arrayWithHoles.findLastIndex(passAfter5) is 7
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PASS arrayWithHoles.findLastIndex(passUndefined) is 4
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Generic Object
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PASS toObject([undefined, 0, null, false, '']).findLastIndex(passUndefined) is 0
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PASS toObject([undefined, 0, null, false, '']).findLastIndex(passZero) is 1
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PASS toObject([undefined, 0, null, false, '']).findLastIndex(passNull) is 2
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PASS toObject([undefined, 0, null, false, '']).findLastIndex(passFalse) is 3
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PASS toObject([undefined, 0, null, false, '']).findLastIndex(passEmptyString) is 4
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PASS toObject([0, null, false, '']).findLastIndex(passUndefined) is -1
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PASS toObject([undefined, 0, false, '']).findLastIndex(passNull) is -1
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PASS toObject([undefined, 0, null, '']).findLastIndex(passFalse) is -1
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PASS toObject([undefined, 0, null, false]).findLastIndex(passEmptyString) is -1
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PASS toObject([undefined, null, false, '']).findLastIndex(passZero) is -1
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PASS toObject(new Array(20)).findLastIndex(passUndefined) is 19
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Array-like object with invalid lengths
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PASS var obj = { 0: 1, 1: 2, 2: 3, length: 0 }; Array.prototype.findLastIndex.call(obj, throwError) is -1
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PASS var obj = { 0: 1, 1: 2, 2: 3, length: -0 }; Array.prototype.findLastIndex.call(obj, throwError) is -1
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PASS var obj = { 0: 1, 1: 2, 2: 3, length: -3 }; Array.prototype.findLastIndex.call(obj, throwError) is -1
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Modification during search
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PASS [0,1,2,3,4,5,6,7,8,9].findLastIndex(findItemAddedDuringSearch) is -1
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PASS [0,1,2,3,4,5,6,7,8,9].findLastIndex(findItemRemovedDuringSearch) is -1
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Exceptions
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PASS Array.prototype.findLastIndex.call(undefined, function() {}) threw exception TypeError: Array.prototype.findLastIndex requires that |this| not be null or undefined.
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PASS Array.prototype.findLastIndex.call(null, function() {}) threw exception TypeError: Array.prototype.findLastIndex requires that |this| not be null or undefined.
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PASS [].findLastIndex(1) threw exception TypeError: Array.prototype.findLastIndex callback must be a function.
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PASS [].findLastIndex('hello') threw exception TypeError: Array.prototype.findLastIndex callback must be a function.
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PASS [].findLastIndex([]) threw exception TypeError: Array.prototype.findLastIndex callback must be a function.
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PASS [].findLastIndex({}) threw exception TypeError: Array.prototype.findLastIndex callback must be a function.
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PASS [].findLastIndex(null) threw exception TypeError: Array.prototype.findLastIndex callback must be a function.
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PASS [].findLastIndex(undefined) threw exception TypeError: Array.prototype.findLastIndex callback must be a function.
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Callbacks in the expected order and *not* skipping holes
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find callback called with index 0
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find callback called with index 1
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find callback called with index 2
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find callback called with index 3
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find callback called with index 4
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find callback called with index 5
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find callback called with index 6
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find callback called with index 7
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PASS numberOfCallbacksInFindIndexInArrayWithHoles() is 8
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PASS successfullyParsed is true
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TEST COMPLETE
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‎LayoutTests/js/array-findLastIndex.html‎

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<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN"><!-- webkit-test-runner [ jscOptions=--useArrayFindLastMethod=true ] -->
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<html>
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<head>
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<script src="../resources/js-test-pre.js"></script>
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</head>
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<body>
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<script src="script-tests/array-findLastIndex.js"></script>
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<script src="../resources/js-test-post.js"></script>
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</body>
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</html>

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