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How to Easily Add the Same Element Multiple Times to a JavaScript Array?

Patricia Arquette
Release: 2024-11-17 02:19:03
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How to Easily Add the Same Element Multiple Times to a JavaScript Array?

Pushing Array Elements Multiple Times with a Simplified Syntax

When adding the same element multiple times to a JavaScript array, it's common to use the push method in a repetitive manner. However, this can be tedious and prone to errors. Is there a better way?

The answer lies in utilizing the JavaScript fill method, particularly designed for inserting the same value multiple times into an array. Instead of writing:

var fruits = [];
fruits.push("lemon", "lemon", "lemon", "lemon");
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You can simplify it to:

var fruits = new Array(4).fill('Lemon');
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This syntax creates an array of a specified length (4 in this case) and fills it with the provided value ('Lemon'). The result is an array with four 'Lemon' elements:

["Lemon", "Lemon", "Lemon", "Lemon"]
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This method not only simplifies your code but also ensures consistency and reduces the risk of errors. It's a convenient and efficient way to add multiple elements of the same value to an array in JavaScript.

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