@@ -0,0 +1,30 @@
+//let pattern = /xyz/;
+// var result1 = "abc xyz def".match(pattern); // ["xyz", index: 4, input: "abc xyz def"]
+// //console.log("result1="+JSON.stringify(result1));
+// if (result1) {
+//     var strIndex = result1.index;
+//     console.assert(strIndex == 4, 'Test 1 Failed');
+// } else {
+//     console.log('Test 1 Passed')
+// }
+
+// var result2 = "abc xyzdef".match(pattern); // null
+// //console.log("result2="+JSON.stringify(result2)+" length="+result2.length);
+// if (!result2) {
+//     console.log('Test 2 Passed')
+// } else {
+//     console.assert(false, 'Test 2 Failed');
+// }
+
+
+let pattern = /xyz/;
+// console.log(pattern);
+// console.log(typeof pattern);
+
+let value = 'This is xyz a test';
+//console.log(pattern.test(value));    // true
+console.log(value.replace(pattern, "REPLACED"));   // This is replaced a test
+// console.log(`Value to search for ${value}`);
+console.log(value.match(pattern));
+var match = value.match(pattern)
+console.log(match.index);