How to replace multiple spaces with single space in JavaScript
Topic: JavaScript / jQueryPrev|Next
Answer: Use the JavaScript replace() method
You can simply use the JavaScript replace() to replace the multiple spaces inside a string.
Let's take a look at the following example to understand how it basically works:
Example
Try this code »<script>
var myStr = 'The quick brown fox';
alert(myStr); // Output 'The quick brown fox'
var newStr = myStr.replace(/ +/g, ' ');
alert(newStr); // Output 'The quick brown fox'
</script>However, the difference is not visible if you print those strings on a web page, because browsers treat multiple spaces as single space unless you preserve white space.
Example
Try this code »<script>
var myStr = 'The quick brown fox';
document.write('<p>' + myStr + '</p>'); // Browser doesn't display multiple spaces
var newStr = myStr.split(' ').join('-');
document.write('<p>' + newStr + '</p>'); // Print 'The--quick-brown-fox'
var myStr = myStr.replace(/ +/g, ' ');
document.write('<p>' + myStr + '</p>');
var newStr = myStr.split(' ').join('-');
document.write('<p>' + newStr + '</p>'); // Print 'The-quick-brown-fox'
</script>Related FAQ
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