javascript: create dictionary array from array using map

Question

I have an array of strings.

const periods = ["2021-03-31", "2021-02-28", "2021-01-31"]

I want to create a dictionary array from this array. My result should look like this:

[
   {value: "2021-03-31",label : "2021-03-31"}, 
   {value: "2021-02-28",label : "2021-02-28"}, 
   {value: "2021-01-31",label : "2021-01-31"}
]

Is it possible to do it with map function.

const periodsDictArray = periods.map(el => ??? )

Hassan Imam · Accepted Answer · 2021-03-08 12:37:17Z

2

You have to return an object from array#map callback.

const periods = ["2021-03-31", "2021-02-28", "2021-01-31"],
      result = periods.map(value => ({value, label: value}));
console.log(result);

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answered Mar 8, 2021 at 12:37

Hassan Imam

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