Javascript Object o Array

Question

I tried to use jQuery to do jQuery.parseJSON and JSON.stringify to take a JSON response and I can't seem to get data that is named as label.

{
    "message":"Success",
    "result":
        [
            {
                "prediction":
                    [
                        {
                            "label":"Anta",
                            "probability":0.095694885
                        },
                        {
                            "label":"Mice",
                            "probability":0.9043051
                        }
                    ]
            }
        ]
}

I'm trying to use ajax to take the request and try to use it as so:

function success(name) {
         var json = jQuery.parseJSON(name);
         var jsons = JSON.stringify(name);
         console.log(json.result['prediction'].label);
    },

Can you try something like this console.log(json.result['prediction'][0].label);? — Jignesh M. Khatri
– Jignesh M. Khatri, Commented Sep 29, 2018 at 6:24
Can you clarify your question? Also jQuery.parseJSON is deprecated as of version 3.0. — Steven B.
– Steven B., Commented Sep 29, 2018 at 6:24
aloisdg I am trying to get the label name and probability value... — Lance
– Lance, Commented Sep 29, 2018 at 6:32

aloisdg · Accepted Answer · 2018-09-29 06:42:31Z

4

You can access an array by using an index for example 0 for the first item:

function success(name) {
    var json = jQuery.parseJSON(name);
    var jsons = JSON.stringify(name);
    console.log(json.result[0].prediction[0].label); // == Anta
}

Also JavaScript can parse JSON directly. You should be able to do:

function success(name) {
    var json = JSON.parse(name);
    console.log(json.result[0].prediction[0].label); // == Anta
}

By the way, you can read in the jquery doc:

As of jQuery 3.0, $.parseJSON is deprecated. To parse JSON strings use the native JSON.parse method instead.

source

If you want to get all labels:

function success(name) {
    const json = JSON.parse(name);
    const labels = json.result.map(r => r.prediction.map(p => p.label)).flat().flat();

    console.log(labels); // == Anta, Mice
}

This is a es6 solution using map() and flat(). Check their doc on msdn in case of doubt.

edited Sep 29, 2018 at 6:42

answered Sep 29, 2018 at 6:24

aloisdg

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Comments

Mukund · Accepted Answer · 2018-09-29 08:37:53Z

1

using map method to get all the labels

json.result[0].prediction.map((obj)=>{return obj.label})

answered Sep 29, 2018 at 8:37

Mukund

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