Question

I am still new on regex (I should learn), I just need JS regex to extract string and number from a text like this: [number][string].

( /^(\d+).(\s+)/?)

Any help please?

Answer 1

I think you are looking for ‘/\d+[a-z]+/gi‘ :

var x = "123123K, 333D".match(/\d+[a-z]+/gi); 
console.log(x)​;    //["123123K", "333D"]

UPDATE: x is array. You can iterate over it and extract number and text:

xitem.match(/\d+/)[0]      //number
xitem.match(/[a-z]+/i)[0]  //text

P.S.: About \s:

Matches a whitespace character, which in ASCII are tab, line feed,
form feed, carriage return, and space; in Unicode, also matches
no-break spaces, next line, and the variable-width spaces (amongst
others).

http://en.wikipedia.org/wiki/Regular_expression#Examples