Split string into two parts

Question

I know there are several ways to split an array in jQuery but I have a special case: If I have for example this two strings:

 "G09.4 What"
 "A04.3  A new Code"

When I split the first by ' ' I can simply choose the code in front with [0] what would be G09.4. And when I call [1] I get the text: What

But when I do the same with the second string I get for [1] A but I want to retrieve A new Code.

So how can I retrieve for each string the code and the separate text?

var newStr=""; for(var i=1; i – DutGRIFF Dec 09 '13 at 15:29 — DutGRIFF, Dec 09 '13 at 15:29

score 46 · Accepted Answer · edited May 18 '23 at 15:23

46

Use

var someString = "A04.3  A new Code";
var index = someString.indexOf(" ");  // Gets the first index where a space occours
var id = someString.slice(0, index); // Gets the first part
var text = someString.slice(index + 1);  // Gets the text part

edited May 18 '23 at 15:23

lazyfellow

3
2

answered Dec 09 '13 at 15:30

RononDex

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Sorry but somehow it wont work in my example: http://jsfiddle.net/aJZZw/1/ – John Smith Dec 09 '13 at 15:45
1

Fixed it for you: http://jsfiddle.net/aJZZw/2/ – RononDex Dec 09 '13 at 15:47
@JohnSmith Have eddited my answer, had a small bug. Changed the line `var text = someString.substr(index + 1);` – RononDex Dec 09 '13 at 15:54

score 12 · Answer 2 · answered Dec 09 '13 at 15:30

12

You can split the string and shift off the first entry in the returned array. Then join the leftovers e.g.

var chunks = "A04.3  A new Code".split(/\s+/);
var arr = [chunks.shift(), chunks.join(' ')];

// arr[0] = "A04.3"
// arr[1] = "A new Code"

answered Dec 09 '13 at 15:30

Bart

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11

I bet you go dynamite fishing. That's joust overkill. – Bitterblue Aug 19 '16 at 10:45
1

Felt it's look overkill, but easy to understand, so used in project. – Manohar Reddy Poreddy Nov 19 '21 at 11:11
Are you sure the comma is a sequence point? what if some flavor of JS evaluates the array elements in parallel? I think this behavior is undefined. aka you got lucky – John Henckel Jan 17 '22 at 01:32

score 4 · Answer 3 · answered Dec 09 '13 at 15:33

4

Instead of splitting the string on the space, use a combination of indexOf and slice:

var s = "A04.3 A new Code";
var i = s.indexOf(' ');
var partOne = s.slice(0, i).trim();
var partTwo = s.slice(i + 1, s.length).trim();

answered Dec 09 '13 at 15:33

Justin Niessner

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score 4 · Answer 4 · answered Dec 09 '13 at 15:33

You can use match() and capture what you need via a regular expression:

"G09.4 What".match(/^(\S+)\s+(.+)/)
  // => ["G09.4 What", "G09.4", "What"]

"A04.3  A new Code".match(/^(\S+)\s+(.+)/)
  // => ["A04.3  A new Code", "A04.3", "A new Code"]

As you can see the two items you want are in [1] and [2] of the returned arrays.

Frederik.L · Answer 5 · 2013-12-09T15:46:51.037

3

What about this one:

function split2(str, delim) {
    var parts=str.split(delim);
    return [parts[0], parts.splice(1,parts.length).join(delim)];
}

FIDDLE

Or for more performance, try this:

function split2s(str, delim) {
    var p=str.indexOf(delim);
    if (p !== -1) {
        return [str.substring(0,p), str.substring(p+1)];
    } else {
        return [str];
    }
}

edited Dec 09 '13 at 15:46

answered Dec 09 '13 at 15:37

Frederik.L

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score 0 · Answer 6 · answered Dec 09 '13 at 15:33

You can get the code and then remove it from the original string leaving you with both the code and the string without the code.

var originalString = "A04.3  A new Code",
    stringArray = originalString.split(' '),
    code,
    newString;

code = stringArray[0];
newString = originalString.replace(code, '');

Split string into two parts

6 Answers6