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<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <title>JavaScript Find and Replace Characters in a String Using Regular Expression</title> </head> <body> <script> let regex = /\s/g; let replacement = "-"; let str = "Earth revolves around\nthe\tSun"; // Printing original string document.write("<pre>" + str + "</pre>"); // Replace spaces, newlines and tabs document.write("<pre>" + str.replace(regex, replacement) + "</pre>"); // Replace only spaces document.write("<pre>" + str.replace(/ /g, "-") + "</pre>"); </script> </body> </html>
