[removed] what's the point of RegExp.compile()?

Question

I\'ve got a situation where I want to get a regexp from the user and run it against a few thousand input strings. In the manual I found that the RegExp object h

Answer 1

You have to compile your regex first to use it if you are using /, try this out:

var regex=new RegExp('/[a-zA-Z]/')

console.log("not compiled with escape /", regex.test("ciao") )

regex.compile()

console.log("compiled", regex.test("ciao") )

var regex=new RegExp('[a-zA-Z]')

console.log("not compiled, but no escape /", regex.test("ciao") )