Compile a regex rule in Node.js?

Question

Is it possible to compile regex rules in Node.js for faster use?

Answer 1

V8 automatically compiles regular expressions. See http://www.scribd.com/doc/16921039/V8-Internals-Building-a-High-Performance-JavaScript-Engine

Answer 2

Node.js is just JavaScript running on V8, so you really only have what V8 offers, namely:

var r = new RegExp("abc", 'i'); 

V8 will do its own optimization, perhaps even in built-in regular expressions.