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@ -50,8 +50,8 @@ comments: true
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```javascript title="array.js"
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/* 初始化数组 */
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var arr = new Array(5).fill(0)
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var nums = [1, 3, 2, 5, 4]
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var arr = new Array(5).fill(0);
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var nums = [1, 3, 2, 5, 4];
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```
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=== "TypeScript"
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@ -140,10 +140,10 @@ elementAddr = firtstElementAddr + elementLength * elementIndex
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/* 随机返回一个数组元素 */
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function randomAccess(nums){
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// 在区间 [0, nums.length) 中随机抽取一个数字
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const random_index = Math.floor(Math.random() * nums.length)
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const random_index = Math.floor(Math.random() * nums.length);
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// 获取并返回随机元素
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random_num = nums[random_index]
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return random_num
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random_num = nums[random_index];
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return random_num;
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}
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```
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@ -236,13 +236,13 @@ elementAddr = firtstElementAddr + elementLength * elementIndex
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/* 扩展数组长度 */
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function extend(nums, enlarge){
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// 初始化一个扩展长度后的数组
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let res = new Array(nums.length + enlarge).fill(0)
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let res = new Array(nums.length + enlarge).fill(0);
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// 将原数组中的所有元素复制到新数组
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for(let i=0; i<nums.length;i++){
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res[i] = nums[i]
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res[i] = nums[i];
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}
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// 返回扩展后的新数组
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return res
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return res;
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}
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```
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@ -369,7 +369,7 @@ elementAddr = firtstElementAddr + elementLength * elementIndex
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function remove(nums, index){
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// 把索引 index 之后的所有元素向前移动一位
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for (let i = index; i < nums.length - 1; i++) {
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nums[i] = nums[i + 1]
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nums[i] = nums[i + 1];
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}
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}
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```
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@ -467,14 +467,14 @@ elementAddr = firtstElementAddr + elementLength * elementIndex
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```javascript title="array.js"
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/* 遍历数组 */
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function traverse(nums){
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let count = 0
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let count = 0;
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// 通过索引遍历数组
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for (let i = 0; i < nums.length; i++) {
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count++;
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}
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// 直接遍历数组
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for(let num of nums){
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count += 1
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count += 1;
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}
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}
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```
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@ -562,7 +562,7 @@ elementAddr = firtstElementAddr + elementLength * elementIndex
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if (nums[i] == target)
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return i;
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}
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return -1
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return -1;
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}
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```
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