Use of JS replace all replacement characters

This article is mainly on the use of JS Replace all the replacement characters are introduced, the need for friends can come to the reference, I hope to help you script language= "JavaScript" > var r= "1n2n3n";   Replace the letter N with the component number alert (R.replace ("n", ";")); Results: 1;2N3N only replaced the first </script> <script language= "JavaScript" > var r= "1n2n3n";   Replace the letter N with the component number alert (R.replace (/n/g, ";")); Results: 1;2;3; The first parameter of replace can be a regular expression,/g identity full-text matching. </script>