Remove spaces from a string

Delete every whitespace character, including tabs and line breaks.

JavaScript Version 1.0.0 · MIT · .md

function removeSpaces(text) { return text.replace(/\s/g, ''); }

Input & expected output

" a b\tc\n"

"abc"

The edge case

""

""

Know the limits

• \s also matches non-breaking and other Unicode spaces.

The function above is the implementation used by the lab. The lab validates JSON types and caps size before execution; include equivalent validation when accepting untrusted input in your application.

Keep exploring

• Capitalize a string — Uppercase the first Unicode code point and preserve the remaining text.
• Reverse a string — Reverse Unicode code points without splitting surrogate pairs.
• Check a palindrome — Compare a string with its code-point reversal.