pull/93/head
IsChristina 2022-12-12 21:39:48 +08:00
parent 35d4208fa8
commit dc3ac1fae6
1 changed files with 12 additions and 12 deletions

View File

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