Angular js convert string property to boolean inside json object

Question

i'm working with angular js and i have the following array that contains many json object , each objects has the property "isSingle" which contains "true" or "false" , my issue is how to convert this property to boolean true or false :

[
    {
      "noFolder": "AW343",
      "type": "T7",
      "creationDate": "22/05/2017",
      "isSingle": "true"
    },
    {
      "noFolder": "AW35",
      "type": "T34",
      "creationDate": "09/05/2017",
      "isSingle": "false"
    },
    {
      "noFolder": "ASW3",
      "type": "T3",
      "creationDate": "05/07/2017",
      "isSingle": "true"
    },
    {
      "noFolder": "BG5",
      "type": "T1",
      "creationDate": "22/12/2018",
      "isSingle": "false"
    }

]

my desired result is to have objects like :

  {
      "noFolder": "ASW3",
      "type": "T3",
      "creationDate": "05/07/2017",
      "isSingle": true
    }

do you have any idea about how to change the type of the property isSingle to bbolean. i'm using angularjs...

Please read What is the difference between JSON and Object Literal Notation? — str
– str, Commented May 31, 2018 at 13:27
If you are using angular, shouldn't you be using Typescript instead of Javascript ? — Seblor
– Seblor, Commented May 31, 2018 at 13:27
Possible duplicate of How can I convert a string to boolean in JavaScript? — Protozoid
– Protozoid, Commented May 31, 2018 at 13:30
Would it not be better to tackle the problem at the server API and have it return valid JSON for boolean values like "{...,"isSingle":true}"? — HMR
– HMR, Commented May 31, 2018 at 14:15

jbrown · Accepted Answer · 2018-05-31 13:31:11Z

4

Simple loop through the objects to convert string to bool:

yourArray.forEach(x => x.isSingle = x.isSingle === 'true');

answered May 31, 2018 at 13:31

jbrown

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Comments

Pardeep Jain · Accepted Answer · 2018-05-31 13:31:13Z

1

Just Iterate over the array and replace the value as per your requirement like this -

var obj = [
    {
      "noFolder": "AW343",
      "type": "T7",
      "creationDate": "22/05/2017",
      "isSingle": "true"
    },
    {
      "noFolder": "AW35",
      "type": "T34",
      "creationDate": "09/05/2017",
      "isSingle": "false"
    },
    {
      "noFolder": "ASW3",
      "type": "T3",
      "creationDate": "05/07/2017",
      "isSingle": "true"
    },
    {
      "noFolder": "BG5",
      "type": "T1",
      "creationDate": "22/12/2018",
      "isSingle": "false"
    }

]

obj.map((e) => {
    e.isSingle == "true" ? e.isSingle = true : e.isSingle = false
});

answered May 31, 2018 at 13:31

Pardeep Jain

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2 Comments

Pardeep Jain Over a year ago

@str I tried it on my console, is there any error in this code ?

Pardeep Jain Over a year ago

Yes, Agree with your point. and yes it modifies original object

Ashish Santikari · Accepted Answer · 2018-05-31 13:59:28Z

0

Using reduce method.

let updated_array = array.reduce(function(acc, elem) {
    acc.push(Object.assign({}, elem, { isSingle: (elem['isSingle'] == true ? true : false) }));
    return acc;
}, []);

answered May 31, 2018 at 13:59

Ashish Santikari

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