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JavaScript - swap two array elements
3 points
In this article, we would like to show you how to swap two array elements in JavaScript.
Quick solution:
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const array = ['a', 'b', 'd', 'c'];2
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const tmp = array[3];4
array[3] = array[2];5
array[2] = tmp;or
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const array = ['a', 'b', 'd', 'c'];2
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[array[2], array[3]] = [array[3], array[2]];
In the below example, we swap the last two items of array.
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const array = ['a', 'b', 'd', 'c'];2
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const tmp = array[3];4
array[3] = array[2];5
array[2] = tmp;6
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console.log(array);without creating temporary variable:
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const array = ['a', 'b', 'd', 'c'];2
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[array[2], array[3]] = [array[3], array[2]];4
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console.log(array);