How to convert enum into a key,value array in typescript?

Question

var enums = {
  '1': 'HELLO',
  '2' : 'BYE',
  '3' : 'TATA'
  };

I want to be able to convert that into an array that looks like this,

[
  {
    number:'1',
    word:'HELLO'
  },
  {
    number:'2',
    word:'BYE'
  },
  {
    number:'3',
    word:'TATA'
  }
]

all of the solutions I see form an array of either the keys or the values.

Answer 1

You can use Object.entries and map it to desired format

 var enums = { '1': 'HELLO', '2' : 'BYE', '3' : 'TATA' }; let op = Object.entries(enums).map(([key, value]) => ({ number:key, word:value })) console.log(op) 

Answer 2

You could map the entries with short hand properties .

 var enums = { 1: 'HELLO', 2: 'BYE', 3: 'TATA' }, objects = Object.entries(enums).map(([number, word]) => ({ number, word })); console.log(objects); 

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Answer 3

you can use Object.entries() with foreach and push it to an array like this

 var enums = { '1': 'HELLO', '2' : 'BYE', '3' : 'TATA' }; var enumArray = [] Object.entries(enums).forEach(([key, value]) => enumArray.push({number : key, word : value})); console.log(enumArray); 

Answer 4

Need to create an object of Map type then get the value using get method like outData.get("1")

var obj = {
    '1': 'HELLO',
    '2': 'BYE',
    '3': 'TATA'
};
var outData = new Map();
Object.keys(obj).forEach(function (e) {
    outData.set(e, obj[e])
});

To get data use outData.get("key")

Now the out put data will like-

Map(3) {"1" => "HELLO", "2" => "BYE", "3" => "TATA"}

Answer 5

Another alternative is to use a for ... in loop to iterate over the enums keys and construct your desired array of objects.

 var enums = { '1': 'HELLO', '2' : 'BYE', '3' : 'TATA' }; let res = []; for (key in enums) { res.push({number: key, word: enums[key]}); } console.log(res); 

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Answer 6

You can use Object.keys and map

 var obj = { '1': 'HELLO', '2' : 'BYE', '3' : 'TATA' }; const result = Object.keys(obj).map(el => { return { number: el, word: obj[el] } }) console.log(result)