30秒学会 JavaScript 片段 – Remove whitespaces

Returns a string with whitespaces removed.

• Use String.prototype.replace() with a regular expression to replace all occurrences of whitespace characters with an empty string.

代码实现

const removeWhitespace = str => str.replace(/\s+/g, '');

removeWhitespace('Lorem ipsum.\n Dolor sit amet. ');
// 'Loremipsum.Dolorsitamet.'

翻译自：https://www.30secondsofcode.org/js/s/remove-whitespace