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<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <title>Creating a Regular Expression in JavaScript</title> </head> <body> <script> var str = "Mr. Gray"; // Literal syntax var regex1 = /^Mr\./; if(regex1.test(str)) { document.write("Match found!"); } else { document.write("Match not found."); } document.write("<hr>"); // Constructor syntax var regex2 = new RegExp("^Mr\\."); if(regex2.test(str)) { document.write("Match found!"); } else { document.write("Match not found."); } </script> </body> </html>
