题解 | #移除数组中的元素#
移除数组中的元素
https://www.nowcoder.com/practice/a93dd26ebb8c425d844acc17bcce9411
快慢指针
function removeWithoutCopy(arr, item) {
let fast = 0
let slow = 0
while(fast < arr.length) {
if(arr[fast] !== item) {
arr[slow] = arr[fast]
slow++
}
fast++
}
arr.length = slow
return arr
}
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