JSON loop through single object

Question

How can i get the second values (dates) in a javascript array?

I am new to this and i can't get it to work.

{"0":"11-28-2012","4":"11-29-2012","10":"12-03-2012"}

Thanks!

You should be able to do this by simply doing json_object[1]. — Jeremy
– Jeremy, Commented Dec 4, 2012 at 2:15
What do you mean by "second dates"? The object you have does have no ordered values, and no key "1". — Bergi
– Bergi, Commented Dec 4, 2012 at 2:21

timc · Accepted Answer · 2012-12-04 02:18:15Z

1

A very simple loop is below. You should check that the object hasOwnProperty which is important for more complicated objects.

If your object is called obj:

obj = {"0":"11-28-2012","4":"11-29-2012","10":"12-03-2012"}; 
for (var i in obj) {
    console.log(obj[i]);
}

Or without the loop:

obj = {"0":"11-28-2012","4":"11-29-2012","10":"12-03-2012"};
console.log(obj[0]); // displays "11-28-2012"

edited Dec 4, 2012 at 2:18

answered Dec 4, 2012 at 2:13

timc

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7 Comments

Bergi Over a year ago

You should not name the object "arr", as it is no array.

timc Over a year ago

You are completely correct, I have updated the answer. Thanks.

intelis Over a year ago

Hi, thanks for your answers, but i cant get it to work. I have a PHP that does json_encode on array, and then when i console.log() the returned array via ajax i get that object returned, but i cant loop through it..jsfiddle.net/qL6dk

timc Over a year ago

Unfortunately I can't get your fiddle to work for me. What happens when you try to loop through it?

intelis Over a year ago

it looks like its returning parts of string..it does not recognize it as object..

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Ping Yin · Accepted Answer · 2012-12-04 02:18:20Z

0

In javascript, the order of keys is nondeterministic. if you really want, you can use underscore values function

_.values(obj)[1]

answered Dec 4, 2012 at 2:18

Ping Yin

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Comments

OammieR · Accepted Answer · 2012-12-04 02:30:53Z

0

Not really sure want do you want. But if you want to get date in month-date-year use split().

var jsonDate = {"0":"11-28-2012","4":"11-29-2012","10":"12-03-2012"};

console.log(jsonDate["0"].split('-')[1]); //28
console.log(jsonDate["4"].split('-')[1]); //29
console.log(jsonDate["10"].split('-')[1]); //03

answered Dec 4, 2012 at 2:30

OammieR

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