jQuery: Convert string with comma separated values to specific JSON format

Question

I've been losing hours over something that might be trivial:

I've got a list of comma-separated e-mail addresses that I want to convert to a specific JSON format, for use with the Mandrill API (https://mandrillapp.com/api/docs/messages.JSON.html)

My string:

var to = '[email protected],[email protected],[email protected]';

What (I think) it needs to be:

[
    {"email": "[email protected]"},
    {"email": "[email protected]"},
    {"email": "[email protected]"}
]

I've got a JSFiddle in which I almost have it I think: http://jsfiddle.net/5j8Z7/1/

I've been looking into several jQuery plugins, amongst which: http://code.google.com/p/jquery-json But I keep getting syntax errors.

Another post on SO suggested doing it by hand: JavaScript associative array to JSON

This might be a trivial question, but the Codecadamy documentation of the Mandrill API has been down for some time and there are no decent examples available.

You could just split it on commas, but if you have no control over the email addresses that's not 100% safe, since a valid email address may have a comma in it. — Pointy, Aug 30 '13 at 14:07

score 20 · Accepted Answer · answered Aug 30 '13 at 14:07

20

var json = [];
var to = '[email protected],[email protected],[email protected]';
var toSplit = to.split(",");
for (var i = 0; i < toSplit.length; i++) {
    json.push({"email":toSplit[i]});
}

answered Aug 30 '13 at 14:07

Anton

32,245
5
44
54

You make it look so easy :-) I'll be accepting your answer shortly. I have to wait 10 mins apparently! – chocolata Aug 30 '13 at 14:13

score 5 · Answer 2 · answered Apr 08 '17 at 16:51

Try this ES6 Version which has better perform code snippet.

'use strict';

let to = '[email protected],[email protected],[email protected]';

let emailList = to.split(',').map(values => {
    return {
        email: values.trim(),
    }
});

console.log(emailList);

score 4 · Answer 3 · answered Aug 30 '13 at 14:11

4

How about:

var to = '[email protected],[email protected],[email protected]',
    obj = [],
    parts = to.split(",");

for (var i = 0; i < parts.length; i++) {
    obj.push({email:parts[i]});
}

//Logging
for (var i = 0; i < obj.length; i++) {
    console.log(obj[i]);
}

Output:

Object {email: "[email protected]"}
Object {email: "[email protected]"}
Object {email: "[email protected]"}

Demo: http://jsfiddle.net/tymeJV/yKPDc/1/

answered Aug 30 '13 at 14:11

tymeJV

103,943
14
161
157

Wow, what a strange technique. Haven't seen this before! – chocolata Aug 30 '13 at 14:28

score 3 · Answer 4 · answered Aug 30 '13 at 14:10

3

Try changing the loop to this:

    var JSON = [];
    $(pieces).each(function(index) {
        JSON.push({'email': pieces[index]});   
    });

answered Aug 30 '13 at 14:10

Raúl Juárez

2,129
1
19
17

Thanks for your answer! I would have accepted it, but @Anton was first ;-) – chocolata Aug 30 '13 at 14:28

jQuery: Convert string with comma separated values to specific JSON format

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