JavaScript regex spltting of string if keyword exists

Question

I have two possible example strings:

'Software Sheffield'

and

'Software IN Sheffield'

and I want to split the string if it has the keyword 'IN' in the middle of it.

So for example 1:

var string1 = 'Software Sheffield';
var string2 = '';

and for example 2:

var string1 = 'Software';
var string2 = 'Sheffield';

Can anyone help me achieve this?

So far I have tried:

var string1 = string.split(/[ IN ]+/);
var string2 = string.split(/+[ IN ]/);

• Mr_Green: remove jquery wrapping.. it will work fine
• T.J. Crowder: @Mr_Green: No, it won't.
• Mr_Green: yeah it will not work..

Answer 1

Just use the string as separator (with spaces)

.split(' IN ');

Answer 2

/[ IN ]+/ means "the individual characters [SPACE]/I/N/[SPACE] repeated 1 to inifinity times" so it'd also match "NINININININIII NNNNIIINIIII".

You can simply use a string in split():

var splitter = string.split(' IN ');
var string1 = splitter[0];
var string2 = (splitter.length >= 2 ? splitter[1] : '');

• Cameron: That's working except that if one of them is empty I get undefined as the value of the string.
• georg: or simply splitter[1] || ''
• h2ooooooo: @thg435 That'd work just as fine (the reason for this, OP, is that splitter[1], if not set, would be undefined which is a falsy value. Therefore what this would say is "if splitter[1] is not falsy, then use splitter[1], but if it IS falsy, then use ''".)

Answer 3

Your regex - [ IN ] Means that it matches I letter and N letter. Simply

string.split('IN');

Answer 4

Why you use jQuery function here? Just work with string

'Software Sheffield'.split(' IN ');

Answer 5

Why dont you try

 var strings = "Software IN Sheffield".split(" IN "); // this will be returning an array
 var string1 = strings[0];
 var string2 = strings[1];

check this http://jsbin.com/iKeCUnA/1/