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.

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.**

```javascript:index.js
const str = 'A   very    spaced   string';

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

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The first parameter we passed to the
[String.replace](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/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.

<Alert>
  The <code>replace</code> method does not change the original string instead it
  returns a new string with the matched characters replaced. Strings are
  immutable in JavaScript.
</Alert>

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Replace Multiple Spaces with a Single Space in JavaScript

Replace Multiple Spaces with a Single Space #

Borislav Hadzhiev

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Replace Multiple Spaces with a Single Space in JavaScript