Merge pull request #99 from thuongtruong1009/es6

feat: add lession 05 + 06 to es6 lessions
thuongtruong1009 · Sep 7, 2022 · d5ca05c · d5ca05c
2 parents 2d29882 + 0627901
commit d5ca05c
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diff --git a/ES6/05_prevent-object-mutation.js b/ES6/05_prevent-object-mutation.js
@@ -0,0 +1,15 @@
+function freezeObj() {
+    const MATH_CONSTANTS = {
+      PI: 3.14
+    };
+    // Only change code below this line
+    Object.freeze(MATH_CONSTANTS);
+    // Only change code above this line
+    try {
+      MATH_CONSTANTS.PI = 99;
+    } catch(ex) {
+      console.log(ex);
+    }
+    return MATH_CONSTANTS.PI;
+  }
+  const PI = freezeObj();
diff --git a/ES6/06_use-arrow-functions-to-write-concise-anonymous-functions.js b/ES6/06_use-arrow-functions-to-write-concise-anonymous-functions.js
@@ -0,0 +1,3 @@
+const magic = () => {
+    return new Date();
+};