@@ -0,0 +1,25 @@
+import { signal, computed } from '@angular/core';
+
+// npm install @angular/core --save
+// yarn add @angular/core
+
+const name = signal('Marcus Aurelius');
+console.log('Name 1: ' + name());
+
+name.set('Verus');
+console.log('Name 2: ' + name());
+
+name.update((previous) => 'Marcus Aurelius ' + previous);
+console.log('Name 3: ' + name());
+
+const emperor = computed(() => {
+  let fullName = name();
+  if (fullName.includes('Verus')) {
+    return fullName.replace('Verus', 'Antoninus');
+  }
+  return fullName + ' Augustus';
+});
+console.log('Name 4: ' + emperor());
+
+name.set(emperor());
+console.log('Name 5: ' + emperor());
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+{
+  "dependencies": {
+    "@angular/core": "^17.2.3"
+  }
+}
-Original file line number
+Diff line change
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 +{
 +  "dependencies": {
 +    "@angular/core": "^17.2.3"
 +  }
 +}