javascript check if regex apply

Question

First of all, here is my code snippet:

var str = '<!--:de-->some german text<!--:--><!--:en-->some english text<!--:-->';
var match =  str.match(/de-->([^<]+).+?en[^>]+>([^<]+)/i);
var textInDe = match[1]; 
var textInEn = match[2];

I've got this regex validation (thanks to The Mask) which works great.

Now, I want to check with an if-statement if this regex applies to some string or not. I'm using Javascript jquery.

Thanks in advance :)

Answer 1

You can use RegExp.test

if(/de-->([^<]+).+?en[^>]+>([^<]+)/i.test(str)) {
   // something
}

Answer 2

var str = '<!--:de-->some german text<!--:--><!--:en-->some english text<!--:-->';
var match =  str.match(/de-->([^<]+).+?en[^>]+>([^<]+)/i);
if(match.length > 0){
//successful match
}

OR

var re = new RegExp('regex string');
  if (somestring.match(re)) {
//successful match
}

Answer 3

How about this?

function IsMatch(v) {
   //basically build your regex here
   var exp = new RegExp("^de-->([^<]+).+?en[^>]+>([^<]+)$"); return exp.test(v);
}

To call it:
if(IsMatch('Your string')) alert('Found'); else alert('Not Found');