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up vote -2 down vote favorite

EDITED

I have a object

var data={"id" : 1, "second" : "abcd"};

These are values from a form. I am passing this to a function for verification.

If the property is same we can get values as data["id"] and data["second"], but sometimes based on other values property can be changed.

How can i get values from data independent of the propertied?

Thanks...

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2  
This is an Object, not an Array. – Paul S. Jul 14 at 1:57
First, that's not an array. Second, what you're calling the "index" is normally called the property name or key. There's no way to get the value except by the property. Though any expression can be placed inside the [] and its return value will be used as the property name. – Crazy Train Jul 14 at 1:58
sorry................. – Hari krishnan Jul 14 at 1:58
@PaulS. edited. – Hari krishnan Jul 14 at 2:01

2 Answers

up vote 1 down vote accepted

What you have is a javascript object, not an array, and you are addressing properties not indicies.

I think what you are trying to accomplish is access properties of an object without knowing the names. To do that you can use a for ... in loop:

for(key in data) {
    if(data.hasOwnProperty(key)) {
        var value = data[key];
        //do something with value;
    }
}
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Don't forget to check hasOwnProperty – Paul S. Jul 14 at 1:58
@PaulS. Thanks for the reminder :) Updated the answer – cfs Jul 14 at 1:59
Leave the .hasOwnProperty check out. Let's not spread the use of unnecessary guards. It's bad practice. – Crazy Train Jul 14 at 1:59
@CrazyTrain let me just go add to Object.prototype on pages where you have code xD – Paul S. Jul 14 at 2:09
@PaulS.: Sure, you could do that... and I'll go delete Object.prototype.hasOwnProperty on pages where you have code. :D The only real guard against such things is to have a strict requirement for a clean environment. – Crazy Train Jul 14 at 2:31
up vote 1 down vote

I am sorry that your concluding question is not that clear but you are wrong from the very first line. The variable data is an Object not an Array

To access the attributes of an object is pretty easy:

alert(data.second);

But, if this does not completely answer your question, please clarify it and post back.

Thanks !

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