One-liner to remove all whitespace from a string in JavaScript

Here’s a one-liner to remove all whitespace from a string in JavaScript:

const stringWithoutWhitespace = originalString.replace(/\s+/g, "");

This uses the replace() method with a regular expression that matches one or more whitespace characters (\s+), and replaces them with an empty string. The g flag at the end of the regular expression makes it global, meaning it will replace all occurrences of whitespace in the string.

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