i have a json array that i want to convert into a plain javascript array:
This is my json array:
var users = {"0":"John","1":"Simon","2":"Randy"}
How to convert it into a plain javascript array like this:
var users = ["John", "Simon", "Randy"]
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I also found this useful: stackoverflow.com/questions/4375537/…shasi kanth– shasi kanth2011-04-11 15:10:49 +00:00Commented Apr 11, 2011 at 15:10
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Can any tell me this is json array or json object?Katty– Katty2017-01-19 06:13:24 +00:00Commented Jan 19, 2017 at 6:13
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@anil This might help: stackoverflow.com/a/12289961/386579shasi kanth– shasi kanth2017-01-19 11:48:43 +00:00Commented Jan 19, 2017 at 11:48
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3 Answers
users is already a JS object (not JSON). But here you go:
var users_array = [];
for(var i in users) {
if(users.hasOwnProperty(i) && !isNaN(+i)) {
users_array[+i] = users[i];
}
}
Edit: Insert elements at correct position in array. Thanks @RoToRa.
Maybe it is easier to not create this kind of object in the first place. How is it created?
4 Comments
shasi kanth
This json array is created dynamically with Zend_Json::encode, but the response is passed back to a js function, that accepts a plain javascript array.
Felix Kling
@dskanth: If you are not doing anything fancy, use the native function
json_encode. It will only turn associative arrays into JSON objects and numerical indexed ones into arrays.
RoToRa
Careful, your code may not assign the values to the correct indexes, because you are assuming the object properties are iterated sorted.
if (!isNaN(+i)) {users_array[+i] = users[i]} may be better.Felix Kling
@RoToRa: You are right. No I did not assume that they are sorted, but I didn't pay attention to the order... I will add this to my answer.
Just for fun - if you know the length of the array, then the following will work (and seems to be faster):
users.length = 3;
users = Array.prototype.slice.call(users);
Comments
Well, here is a Jquery+Javascript solution, for those who are interested:
var user_list = [];
$.each( users, function( key, value ) {
user_list.push( value );
});
console.log(user_list);
Comments
