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Advanced Techniques for Swapping Array Elements in JavaScript

In JavaScript, the traditional method of swapping array elements involves using two temporary variables:

<code class="javascript">var a = list[x], b = list[y];
list[y] = a;
list[x] = b;</code>

However, there are more efficient ways to accomplish this task.

Alternative Swap Method

By utilizing only one temporary variable, we can simplify the swapping process:

<code class="javascript">var b = list[y];
list[y] = list[x];
list[x] = b;</code>

ES6 Destructuring Assignment

With ES6, we can employ destructuring assignment to swap array elements in a single, concise line:

<code class="javascript">[arr[0], arr[1]] = [arr[1], arr[0]];</code>

Given the array arr = [1,2,3,4], this operation transforms it to [2,1,3,4] through a process known as destructuring assignment.

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