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
– Pointy, Commented Aug 30, 2013 at 14:07

Anton · Accepted Answer · 2013-08-30 14:07:51Z

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, 2013 at 14:07

Anton

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1 Comment

chocolata Over a year ago

You make it look so easy :-) I'll be accepting your answer shortly. I have to wait 10 mins apparently!

Venkat.R · Accepted Answer · 2017-04-08 16:51:50Z

5

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);

answered Apr 8, 2017 at 16:51

Venkat.R

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Comments

tymeJV · Accepted Answer · 2013-08-30 14:11:41Z

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, 2013 at 14:11

tymeJV

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1 Comment

chocolata Over a year ago

Wow, what a strange technique. Haven't seen this before!

Raúl Juárez · Accepted Answer · 2013-08-30 14:10:16Z

3

Try changing the loop to this:

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

answered Aug 30, 2013 at 14:10

Raúl Juárez

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1 Comment

chocolata Over a year ago

Thanks for your answer! I would have accepted it, but @Anton was first ;-)

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