How to find number inside [] Javascript

Question

I have the following syntax.

 var name =  [Name_is][234]

   var number = find [234];

How can i find this number in javascript/jquery which is inside [] ?

Possible duplicates of http://stackoverflow.com/questions/1623221/how-to-find-a-number-in-a-string-using-javascript — Jimmy, Aug 10 '11 at 08:00
Jimmy is you found duplicate post please Delete your question, before it gets answers. — Shadow The GPT Wizard, Aug 10 '11 at 08:02

score 0 · Accepted Answer · answered Aug 10 '11 at 08:01

0

Use a regular expression.

var string = "[Name_is][234]"
var matches = string.match(/\[(\d+)]/);

if (matches.length) {
    var num = matches[1];
}

Check out a working fiddle: http://jsfiddle.net/rEJ5V/, and read more on the String.match() method.

answered Aug 10 '11 at 08:01

Matt

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There are no (apparent) strings in the question. – Quentin Aug 10 '11 at 08:03
@Quentin: I can't see what else they'd be. A string is my best guess. – Matt Aug 10 '11 at 08:04
I was thinking it was some sort of "find index of value in array" question. – Quentin Aug 10 '11 at 08:14

score 0 · Answer 2 · answered Aug 10 '11 at 08:02

if you want to extract the text between the [ ], you can do:

var name = "[Name_is][234]";
var check= "\{.*?\}"; 
if (name.search(check)==-1) { //if match failed
  alert("nothing found between brackets");
} else {
  var number = name.search(check);      
  alert(number);
}

How to find number inside [] Javascript

2 Answers2