JSON array javascript

Question

I need to store 3 pet names in string format, parse them into array and later read one by one

Example

pets = '{{"name":"jack"},{"name":"john"},{name:"joe"}}';
var arr = JSON.parse(pets);
alert(arr[0].name);

But it doesn't work.

Also I would need to add entry to array (probably with push) but I am having problems too.

Someone has idea how to do it?

• James W: Probably because you've got objects in objects and it's going to be arr[0][0].name

Answer 1

Your JSON is malformed. Try this:

var pets = '{"pets":[{"name":"jack"},{"name":"john"},{"name":"joe"}]}';
var arr = JSON.parse(pets);
alert(arr.pets[0].name);

• feeela: Why should another layer be added. Also there is explanation of what was wrong with the JSON from the question. Please explain what you did find wrong.

Answer 2

JSon arrays are bounded by [] brackets

try

pets = '[{"name":"jack"},{"name":"john"},{"name":"joe"}]';

also you forgot to use "'s on the last property name.

• EGP: To be clear, if I paste your code exactly and go into jsfiddle and add this: alert(pets[0].name); it is undefined. forEach doesn't work either.

Answer 3

A simpler JSON array (an array of strings):

["jack", "john", "joe"];

Putting it together as JavaScript:

var pets = '["jack", "john", "joe"]';
var arr = JSON.parse(pets);
console.log(arr[0]); // jack
console.log(arr[1]); // john
console.log(arr[2]); // joe

Answer 4

yes just change it to this square brackets also check the double quotations on the last element

pets = '[{"name":"jack"},{"name":"john"},{"name":"joe"}]';
var arr = JSON.parse(pets);
alert(arr[0].name);

Answer 5

pets = '[{"name":"jack"},{"name":"john"},{"name":"joe"}]';
var arr = JSON.parse(pets);
alert(arr[0].name);

• Nigel B: Please supply an explanation with your code. code only answers are discouraged.
• feeela: Downvoted because this is obviously a simple copy of @amir-magdy answer.

Answer 6

An Array must always be written inbetween square brackets

pets = [{"name":"jack"},{"name":"john"},{name:"joe"}];
var arr = JSON.parse(pets);
alert(arr[0].name);

• CLAbeel: How is this different from earlier answers?
• feeela: Downvoted because this is obviously a simple copy of @amir-magdy answer.