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How to concatenate values to an array in JavaScript?
By IncludeHelp Last updated : January 20, 2024
Problem statement
Given a JavaScript array, you have to concatenate some values in the given array.
Concatenating values to an array
To concatenate values to a JavaScript array, you can use the Array.concat() method. Call the concat() method with the array and pass the values as the parameters, it will return a concatenated array with the values.
JavaScript code to concatenate values to an array
The following example concatenates values to an array arr.
// declaring an array
const arr = ["New Delhi", "Mumbai", "Indore"];
// concatenating array with values
const result = arr.concat(1, 2, 3);
// printing the array
console.log("arr:", arr);
console.log("result:", result);
Output
The output of the above code is:
arr: ['New Delhi', 'Mumbai', 'Indore']
result: ['New Delhi', 'Mumbai', 'Indore', 1, 2, 3]
To understand the above example, you should have the basic knowledge of the following JavaScript topics: