How to Replace Multiple Spaces with a Single Space in JavaScript?

Replacing Multiple Spaces with a Single Space Using Regular Expressions

When working with strings that have uneven spacing, it can be desirable to condense multiple spaces into a single space character. This can enhance the readability and consistency of text.

jQuery or JavaScript Solution:

One effective way to achieve this is through regular expressions. For instance, consider the following string:

To condense all consecutive spaces into a single space, we can use the following regular expression:

where:

• s matches a single whitespace character (space, tab, newline, etc.)
• matches one or more occurrences of the preceding character

This regex would replace two or more consecutive whitespace characters with a single space. By applying the .replace() method with this regex, we obtain:

Alternative Solution:

If you want to replace only spaces (and not other whitespace characters), you can use this regex instead:

where represents a literal space character.

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