如何在javascript / jquery中将元素追加到现有数组中

Question

I have an array in javascript

var myArr = {
    'textId':'123', 
    'type':'animal', 
    'content':'hi dog', 
    'expires':'27/10/2012' 
};

$.each(myArr, function(myArrArrKey, myArrArrValue){
    console.log( myArrArrValue );
});

The above console prints following values

123
app
hi app
27/10/2012

Now i am want to append an element to the existing array, i am trying to do like the below one

myArrValue.push({'status':'active'});

The above push throws following error

TypeError: Object #<Object> has no method 'push'

Kindly help me how to append to that existing array element.
I want to print the array like

123
app
hi app
27/10/2012
active

Answer 1

Just do this.

myArr.status = 'active'

or

myArr["status"] = 'active'

Your myArr is an Object not an Array ..

push function is available to an Array variable.

Answer 2

this isn't an array, it's an object!

var myArr = {
    'textId':'123', 
    'type':'animal', 
    'content':'hi dog', 
    'expires':'27/10/2012' 
};

this isn't necessary with jQuery

$.each(myArr, function(myArrArrKey, myArrArrValue){
    console.log( myArrArrValue );
});

easier would be

for ( var k in myArr ) {
    console.log( myArr[ k ];
}

to add new entries to your "array"

myArr[ 'foo' ] = 'bar';  // this is array notation

or

myArr.foo = 'bar';  // this is object notation

to remove entries from your "array"

delete myArr[ 'foo' ];

or

delete myArr.foo;

FYI: myArrValue.push({'status':'active'}); wont work. myArrValue isn't the "array" itself and also not an array having the method push . If it would be an array the result would be, that your latest entry is the whole an object {'status':'active'}

Answer 3

The answer is in the error... you have an object, not an array. Use object notation

myArr.status='active'

Answer 4

Simply use:

myArrValue.status = 'active';

but be aware that what you are using is an object , not an array. Another way to add properties to an object is:

object[key] = value;

Answer 5

这个json对象不是数组推送用于json的数组

myObj.NewProp = 123;

Answer 6

Just for the kicks of it..

function push( obj ) {
    var prop;
    for ( prop in obj ) {
        this[prop] = obj[prop];
    }
    return this;
}

Your object, remember to assing the push method.

var obj = {
    a: "a",
    b: "b",
    push: push
};

And the push:

obj.push({
    c: "c",
    d: "d"
});

Answer 7

myArr["status"] = 'active';

要么

myArr.status ='active';