CODEWITHSUNDEEP
javascriptjquery
AnonyMouse
AnonyMouse

Reputation: 18650

Get first item from comma delimited object

Hi I have an object rowObject passed into a javascript function. When I inspect it by putting it into an alert I see something like:

435,345,345345,56456

What I want to achieve is to get the first integer ie. 435 from the list.

I know how to do this in server side code but client side code.

Can someone please help me with this?

Upvotes: 4

Views: 9161

Answers (4)

haynar
haynar

Reputation: 6030

The fact that the alert shows 435,345,345345,56456 doesn't mean that the object is string, it could be Object and Array as well as their toString method implemented to display it in such way. For example the native array is also looks like that when alerting or converting to string, so you need to call toString method at first then split it by comma:

var firstInt = rowObject.toString().split(',')[0];

Upvotes: 0

kubetz
kubetz

Reputation: 8556

alert() is calling objects toString() method, so you don't know the structure of the object. It is a good idea to use console.log instead for logging objects as in modern browsers it will allow you to explore structure of the object in the console window.

One of the solutions you can do without knowing the structure is:

var firstInteger = +rowObject.toString().split(',')[0] // 435

That works if rowObject is string, array or everything else :).

EDIT: Putting + before the string will try to convert it to a number.

Upvotes: 3

Scruffy The Janitor
Scruffy The Janitor

Reputation: 472

Assuming that your rowObject is a string, you can use .split() to split the comma delimited list. At this point you can access the array of items by index and get the first element.

http://www.w3schools.com/jsref/jsref_split.asp

An Example

var rowObject = "435,345,345345,56456";
var splitRowObject = rowObject.split(',');
if(splitRowObject.length > 0)
    alert(splitRowObject[0]);

Upvotes: 4

Nate B
Nate B

Reputation: 6356

Have you tried rowObject[0]?

Upvotes: 0

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