javascript - it is possible to find out on which line of the input field is not a match per regex? -

here regex

/([0-9]{2}\/[0-9]{2})/gm 

and when in input field this

09/09 03/65 0938 05/37 

i want alert this: there error in third line

it possible somehow?

split value new line , check each line against regex pattern.

for example:

        var regex = /^[0-9]{2}\/[0-9]{2}$/;         var lines = val.split(/\r?\n/);         for(var = 0; i<lines.length ; i++){             if (lines[i].match(regex) == null) {                 alert('there error in ' + (i + 1) + ' line');                 break;             }         } 

note: use ^(beginning of line) , $(end of line) match whole line.