--- title: compactWhitespace tags: string,regexp,beginner --- Compacts whitespaces in a string. - Use `String.prototype.replace()` with a regular expression to replace all occurrences of 2 or more whitespace characters with a single space. ```js const compactWhitespace = str => str.replace(/\s{2,}/g, ' '); ``` ```js compactWhitespace('Lorem Ipsum'); // 'Lorem Ipsum' compactWhitespace('Lorem \n Ipsum'); // 'Lorem Ipsum' ```