Replace Multiple Spaces with a Single Space in JavaScript

Replace Multiple Spaces with a Single Space #

To replace multiple spaces with a single space, call the replace() method with a regex that matches all space characters, followed by 1 or more spaces. The replace method returns a new string with the matched characters replaced.

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const str = 'A   very    spaced   string';

const singleSpaces = str.replace(/  +/g, ' ');
console.log(singleSpaces); // 👉️ "A very spaced string"

The first parameter we passed to the String.replace method is a regular expression that matches a space, followed by 1 or more spaces.

Notice that there are 2 spaces the in regex. With the + symbol we specify that we want to match 1 or more space characters.

We use the g (global) flag to indicate that we want to match all occurrences, not just the first one.

The second parameter is the replacement for each match. In our case we replace multiple spaces with a single space.

Further Reading #

• Remove all Spaces from a String in JavaScript
• Replace all Numbers in a String using JavaScript
• Remove all Numbers from a String in JavaScript
• Remove Empty Strings from an Array in JavaScript
• Remove Empty String Values from an Object in JavaScript
• How to compare Strings in JavaScript
• How to get the Length of a String in JavaScript
• Check if Array contains Empty String in JavaScript
• Interpolate Variable in a String in JavaScript
• Check if letter in String is Uppercase or Lowercase in JS
• Check if String contains only Letters and Spaces in JS
• Check if String contains only Letters and Numbers in JS
• Remove all non-alphanumeric Characters from String in JS