Issues getting JSON string for chart.js data

Question

I'm getting the following error when trying to get a JSON data string for charts.js

Uncaught TypeError: Cannot create property 'datasets' on string '{"datasets":[{"label":"My First dataset","data":[{"x":"2017-01-01","y":35},{"x":"2017-01-15","y":28},{"x":"2017-01-31","y":42}]}]}'

The JSON string I'm creating looks exactly the same like the one in an example. Also if I just copy and paste this string and set it as my data it's just working fine.

This is working:

            data: {"datasets":[{"label":"My First dataset","data":[{"x":"2017-01-01","y":35},{"x":"2017-01-15","y":28},{"x":"2017-01-31","y":42}]}]},

This is not working:

.done(function( data ) {
    console.log(data);
        type: 'line',
        data: data });

Any ideas what I am doing wrong here?

I don't really understand but you probably need to convert the string to javascript object using : JSON.parse(data) — ttncrch
– ttncrch, Commented Jul 5, 2017 at 10:32
You didn't understand the problem but you had the correct solution. Thanks ;-) — Florian Sauerwein
– Florian Sauerwein, Commented Jul 5, 2017 at 10:35

Kukic Vladimir · Accepted Answer · 2017-07-05 10:31:53Z

1

Data received is in string format. You should call JSON.parse(data) on received data in order to access dataset property.

answered Jul 5, 2017 at 10:31

Kukic Vladimir

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1 Comment

Florian Sauerwein Over a year ago

Yea that was my mistake. Stupid me. Thanks ;-)

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