Swap Array Elements in JavaScript
When manipulating arrays in JavaScript, the need often arises to swap the elements between two indices. While a common method involves using a temporary variable, there are more concise approaches.
Concise Element Swapping
Instead of utilizing two temporary variables, you can achieve element swapping with only one:
<code class="javascript">var b = list[y]; list[y] = list[x]; list[x] = b;</code>
ES6 Destructuring Assignment
For JavaScript versions ES6 and later, destructuring assignment provides an elegant solution:
<code class="javascript">[arr[0], arr[1]] = [arr[1], arr[0]];</code>
Applying this to an array like [1,2,3,4] yields [2,1,3,4].
By employing these concise methods, you can enhance the readability and efficiency of your code when swapping array elements in JavaScript.
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