第n个字符出现后如何拆分字符串？

Question

I have a string which i need to split in javascript var str = 'Lenovo Essential G500s (59-388254) Laptop (3rd Gen Ci5/ 8GB/ 1TB/ DOS/ 2GB Graph) (Free carry bag) (Black)';

I need to retrieve just 'Lenovo Essential G500s (59-388254) Laptop' ie, i should be able to split the string after the second occurrence of '(' character.

I have tried using the .split() function, but I am not able to specify the position. Please help.

Answer 1

  var str = 'Lenovo Essential G500s (59-388254) Laptop (3rd Gen Ci5/ 8GB/ 1TB/ DOS/ 2GB Graph) (Free carry bag) (Black)';

  var firstBracket = str.indexOf('(');
  var secondBracket = str.indexOf('(', firstBracket+1)
  str.substring(0, secondBracket);

This will give you the section you're looking for.

For a more general solution, see the existing answer: How to get the nth occurrence in a string?

Answer 2

try this:

var str = 'Lenovo Essential G500s (59-388254) Laptop (3rd Gen Ci5/ 8GB/ 1TB/ DOS/ 2GB Graph) (Free carry bag) (Black)';

var index =  str.indexOf(")");

var res = str.substring(0, index +1);

alert(res);

Cheers