every方法 数组去重
时间: 2023-10-17 13:28:48 浏览: 90
使用every方法可以实现数组去重。下面是一个示例代码:
```javascript
function deduplicationArray(arr) {
let target = [];
arr.forEach(item => {
target.every(x => x !== item) && target.push(item);
});
return target;
}
```
这个函数接受一个数组作为参数,然后利用forEach方法遍历数组中的每一个元素。在遍历过程中,使用every方法判断目标数组中是否已经存在当前元素,如果不存在则将其添加进目标数组。最后返回目标数组,即为去重后的数组。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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