15.Destructuring Assignment with the Rest Parameter.html

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    <!-- In some situations involving array destructuring, we might want to collect the rest of the elements into a separate array. -->
    <script>
        // The result is similar to Array.prototype.slice(), as shown below:
        const [a, b, ...arr] = [1, 2, 3, 4, 5, 7];
        console.log(a, b); // 1, 2
        console.log(arr); // [3, 4, 5, 7]
        // . The rest element only works correctly as the last variable in the list. 
        // 只有...a在最后的时候才生效
        // , you cannot use the rest parameter to catch a subarray that leaves out last element of the original array.
        // 您不能使用rest参数来捕获一个将原始数组的最后一个元素遗漏在外的子数组
        // 就是,[...arr,2] = [eqwewq.123.123.321


        const source = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];

        function removeFirstTwo(list) {
            "use strict";
            // change code below this line
            const [, , ...arr] = list; // change this
            // change code above this line
            return arr;
        }
        const arr = removeFirstTwo(source);
        console.log(arr); // should be [3,4,5,6,7,8,9,10]
        console.log(source); // should be [1,2,3,4,5,6,7,8,9,10];
        
    </script>

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