ansaurus

Question

Answer 1

+2 A:

var str = 'A0001-A0100',
    match = str.match(/\d+/g);

if (match) {
    alert(+match[1] - +match[0]);
}

+ (unary plus) will cast the string to a number (does the same as Number(...)).

J-P 2010-07-23 10:05:30

how if var str= '123x0001-123x0023'?

klox 2010-07-23 10:15:01

@klox, in that case you'd want to change `str.match(/\d+/g)` to `str.match(/\d+(?=-|$)/g)`.

J-P 2010-07-23 10:19:35

i change my question.

klox 2010-07-23 10:21:53

Answer 2

A:

There is a calculation plug-in for jQuery.

rdkleine 2010-07-23 10:07:54

need code for counting from string