javascript - How to read line by line of a text area HTML tag

Question

I have a text area where each line contains Integer value like follows

      1234
      4321
     123445

I want to check if the user has really enetered valid values and not some funny values like follows

      1234,
      987l;

For that I need to read line by line of text area and validate that. How can i read line by line of a text area using javascript?

Answer 1

Try this.

var lines = $('textarea').val().split('
');
for(var i = 0;i < lines.length;i++){
    //code here using lines[i] which will give you each line
}