返回没有删除元素的数组?使用splice()而不更改数组? [英] Returning an array without a removed element? Using splice() without changing the array?

问题描述

我想做类似的事情:

var myArray = ["one","two","three"];
document.write(myArray.splice(1,1));
document.write(myArray);

因此它首先显示一，三"，然后显示一，二，三".我知道splice()返回删除的元素并更改数组，但是有没有函数返回删除了元素的新数组?我试过了:

So that it shows first "one,three", and then "one,two,three". I know splice() returns the removed element and changes the array, but is there function to return a new array with the element removed? I tried:

window.mysplice = function(arr,index,howmany){
    arr.splice(index,howmany);
    return arr;   
};

如果我尝试:

var myArray = ["one","two","three"];
document.write(mySplice(myArray,1,1));
document.write(myArray);

它仍然会更改myArray ...

It still changes myArray...

请帮助.

推荐答案

如以下答案所示，这是代码快照

as suggested by the answer below, here is a code snapshot

var myArray = ["one", "two", "three"];
var cloneArray = myArray.slice();

myArray.splice(1, 1);

console.log(myArray);
console.log(cloneArray);

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