how can I set my objects in array?

Question

I have lots of details. I want to stack them within an array, can I do that?

detailObj = {

    textDetail: "hello this is my text!",
    id: "tooltip_businessDetails"

};

var idArray[0] = detailObg;

Your above code has a typo in the last line. probably should be var idArray[0] = detailObj;. — Sirko
– Sirko, Commented Jun 19, 2012 at 14:26

T.J. Crowder · Accepted Answer · 2012-06-19 14:26:44Z

7

Yes:

var idArray = [
    {
        textDetail: "hello this is my text!",
        id: "tooltip_businessDetails"
    },
    {
        textDetail: "another",
        id: "anotherid"
    },
    // ...and so on
];

Or if you already have variables pointing at them:

var idArray = [detailObj, anotherDetailObj, yetAnotherDetailObj];

You can also do it dynamically after array creation:

var idArray = [];
idArray.push(detailObj);
idArray.push({
    textDetail: "another",
    id: "anotherid"
});
idArray.push(yetAnotheretailObj);

And you can do it the way you tried to, just with a slight change:

var idArray = [];
idArray[0] = detailObj;
idArray[1] = anotherDetailObj;

Any time you set an array element, the array's length property is updated to be one greater than the element you set if it isn't already (so if you set idArray[2], length becomes 3).

Note that JavaScript arrays are sparse, so you can assign to idArray[52] without creating entries for 0 through 51. In fact, JavaScript arrays aren't really arrays at all.

answered Jun 19, 2012 at 14:26

T.J. Crowder

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3 Comments

T.J. Crowder Over a year ago

@thormayer: Good deal, glad that helped. I just expanded it slightly, having seen your edit to the question. Best,

VisioN Over a year ago

@T.J.Crowder Damn! How can you write that fast!

T.J. Crowder Over a year ago

@VisioN: LOL -- Possibly the best advice my mother gave me when I was in high school was to take typing. She said "You're into computers, so you may as well know how to touch-type." I took her advaice, and there we are, it's been serving me well for over 25 years... :-)

VisioN · Accepted Answer · 2012-06-19 14:46:01Z

3

instead of doing this thing use below code

var arr = [];

arr.push(detailobj);

edited Jun 19, 2012 at 14:46

VisioN

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answered Jun 19, 2012 at 14:26

Ajay Singh Beniwal

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Comments

VisioN · Accepted Answer · 2012-06-19 14:27:39Z

2

You can use object-oriented approach:

var detail = function(id, text) {
    this.id = id;
    this.text = text;
};

var arr = [];
arr.push(new detail("myid", "mytext"));

console.log(arr);

answered Jun 19, 2012 at 14:27

VisioN

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Comments

Sarfraz · Accepted Answer · 2012-06-19 14:26:12Z

0

I want to stack them within an array, can I do that ?

Yes you can do that. Array in JavaScript are flexible and can hold objects as well.

Example:

var myArr = [];
myArr.push(detailObj);

answered Jun 19, 2012 at 14:26

Sarfraz

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Comments

Tom · Accepted Answer · 2012-06-19 14:26:37Z

0

for example:

var idArray = [detailObj1, detailObj2];

answered Jun 19, 2012 at 14:26

Tom

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Comments

frictionlesspulley · Accepted Answer · 2012-06-19 14:28:46Z

0

Another one :

var myArray = new Array();
myArray.push(<your object>)

answered Jun 19, 2012 at 14:28

frictionlesspulley

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1 Comment

jbabey Over a year ago

while it is good to know that the new Array constructor exists, i would never recommend using it over [].

Christian Benseler · Accepted Answer · 2012-06-19 14:29:01Z

0

detailObj = {

    textDetail: "hello this is my text!",
    id: "tooltip_businessDetails"

};

var array = [];
for(var key in detailObj) {
   array.push(detailObj[key]);
}
alert(array[0]);

answered Jun 19, 2012 at 14:29

Christian Benseler

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