How to remove specified elements from an array in js (two methods)

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Create a new array and put the qualified data into it through the push method. However, if the amount of data is large, it will consume a lot of memory and the performance will be poor. There are now 2 methods that do not re-create the array, but only change the original array. The complete code is as follows:

Method 1

var removeElement = function(nums, val) {
        
        for (var i = 0; i <p><strong>Method 2</strong></p><pre class="brush:php;toolbar:false"> var removeElement = function(nums, val) {
        var sameNum=0;
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