ECMAScript6/basic-js2.html at master · mhsunny/ECMAScript6 · GitHub

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<!DOCTYPE html>
<html>

<body>
    <h2>Immediately Invoked Function Expression
    </h2>
    <code>

            var main = function() {
                (function() {
                    for (var x = 0; x < 5; x++) {
                        console.log(x);
                    }
                })();
                console.log("x can not be accessed outside the block scope x value is :" + x);
            }
            main();
    </code>
    <script>
        var main = function() {
            (function() {
                for (var x = 0; x < 5; x++) {
                    console.log(x);
                }
            })();
            console.log("x can not be accessed outside the block scope x value is :" + x);
        }
        main();
    </script>


    <h2>Generator Functions
    </h2>
    <code>
            "use strict"

            function* rainbow() {
                // the asterisk marks this as a generator
                yield 'red';
                yield 'orange';
                yield 'yellow';
                yield 'green';
                yield 'blue';
                yield 'indigo';
                yield 'violet';
            }
            for (let color of rainbow()) {
                console.log(color);
            }
    </code>
    <script>
        "use strict"

        function* rainbow() {
            // the asterisk marks this as a generator
            yield 'red';
            yield 'orange';
            yield 'yellow';
            yield 'green';
            yield 'blue';
            yield 'indigo';
            yield 'violet';
        }
        for (let color of rainbow()) {
            console.log(color);
        }
    </script>

    <h2>The Object.assign() Function
    </h2>

    <script>
        "use strict"
        var det = {
            name: "Tom",
            ID: "E1001"
        };
        var copy = Object.assign({}, det);
        // console.log(copy);
        for (let val in copy) {
            console.log(copy[val])
        }
    </script>

    <h2>Invoked through call or apply</h2>

    <script>
        var adder = {
            base: 1,

            add: function(a) {
                var f = v => v + this.base;
                return f(a);
            },

            addThruCall: function(a) {
                var f = v => v + this.base;
                var b = {
                    base: 2
                };

                return f.call(b, a);
            },
            addMore: function(a) {
                var f = v => v + this.base;
                var b = {
                    base: 4
                };
                return f.call(b, a);
            }
        };
        console.log("Invoked through call or apply");
        console.log(adder.add(1)); // This would log 2
        console.log(adder.addThruCall(1)); // This would log 2 still
        console.log(adder.addMore(2));
    </script>


    <h2>
        No binding of arguments

    </h2>
    <script>
        var arguments = [1, 2, 3];
        var arr = () => arguments[0];

        arr(); // 1

        function foo(n) {
            var f = () => arguments[0] + n; // foo's implicit arguments binding. arguments[0] is n
            return f();
        }

        function bar(n) {
            var b = () => arguments[0] + n;
            return b();
        }

        console.log("No binding of arguments  ");
        foo(3); // 6
        console.log("foo" + foo(3));
        console.log("BAR " + bar(2));
    </script>


</body>

</html>