JS uses regular expressions to remove spaces between the left and right strings.

This article mainly introduces how to remove spaces between the left and right strings using regular expressions in Javascript. Combined with examples, it analyzes the simple implementation techniques of JavaScript for first and last matching and space matching, for more information about how to use regular expressions in JavaScript to remove spaces between strings, see the example in this article. We will share this with you for your reference. The details are as follows:

// Remove the left space function ltrim (s) {return s. replace (/^/s */, "");} // remove the right space function rtrim (s) {return s. replace (// s * $/, "");} // remove left and right spaces function trim (s) {return rtrim (ltrim (s ));}

I hope this article will help you design JavaScript programs.

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