Unable to parse stringified array within an array

Question

I have this example code:

let testData= [{name:'Joshua',age:22,option:"[{value:'test'}]"},{name:'Ali',age:200,option:"[{value:'test2'}]"}]

let parsedData=JSON.parse(testData[0].option);
console.log(parsedData);

Testing my code using this site: https://es6console.com/

It seems that I'm unable to parse & log the data at all.

Any ideas why this is happening?

option is invalid JSON as value needs to be quoted... '[{"value":"test"}]' — evolutionxbox
– evolutionxbox, Commented Jun 5, 2017 at 9:48

trincot · Accepted Answer · 2017-06-05 09:49:33Z

1

Your option string is not following the JSON specs: in JSON every key and string value needs to be enclosed in double quotes. So this would work:

let testData= [{
    name: 'Joshua',
    age: 22,
    option: '[{"value": "test"}]'
}, {
    name: 'Ali',
    age: 200,
    option: '[{"value": "test2"}]'
}];

let parsedData = JSON.parse(testData[0].option);
console.log(parsedData);

answered Jun 5, 2017 at 9:49

trincot

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Comments

embarq · Accepted Answer · 2017-06-05 09:48:17Z

0

I think the issue is that JSON object's fields should be wrapped in double-quotes. E.g.

let testData = [{name:'Joshua',age:22,option:`[{"value":'test'}]`},{name:'Ali',age:200,option:`[{"value":'test2'}]`}]

answered Jun 5, 2017 at 9:48

embarq

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