Remove last character from a string in JavaScript

This post will discuss how to remove the last character from a string in JavaScript.

It is not possible to in-place remove characters from a string since strings are immutable in JavaScript. The idea is to create a new string instead.

There are several ways to do that in JavaScript using the substring(), slice(), or substr() method.

1. Using `substring()` method

The substring() method returns the part of the string between the specified indexes. You can use it as follows to remove the last character from a string:

var str = 'Java8';

str = str.substring(0, str.length - 1);

console.log(str);

Output: Java

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2. Using `slice()` method

The slice() method extracts the text from a string between the specified indexes and returns a new string. You can use the following code, which removes the last character from the string:

var str = 'Java8';

str = str.slice(0, str.length - 1);

console.log(str);

Output: Java

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The following example uses slice() with negative indexes.

var str = 'Java8';

str = str.slice(0, -1);

console.log(str);

Output: Java

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3. Using `substr()` method

The substr() method returns a portion of the string, starting at the specified index and extract the specified number of characters. The substr() method is considered a legacy function, and we should use the substring() method instead.

var str = 'Java8';

str = str.substr(0, str.length - 1);

console.log(str);

Output: Java

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That’s all about removing the last character from a string in JavaScript.

Remove last character from a string in JavaScript

1. Using substring() method

2. Using slice() method

3. Using substr() method

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1. Using `substring()` method

2. Using `slice()` method

3. Using `substr()` method