How to deal with json object using type script

Question

This is my normal dummy data by '.js'
There is an array and export it.

const students = [
  {
    id: 1,
    name: 'Sean Grey',
    age: 24
  },
  {
    id: 2,
    name: 'Sllllean Grey',
    age: 224
  },
  {
    id: 3,
    name: 'Seansdajfklajs Grey',
    age: 2114
  }
];

export default students;

I want to export this dummy data checking typescript.
So I'm thinking use 'class' or 'interface'.
But I don't know the guide for this example. Could you recommend some advice for me?

That is an array of objects and has nothing to do with JSON which is a string data format — charlietfl
– charlietfl, Commented Oct 6, 2019 at 6:17

Lior Hai · Accepted Answer · 2019-10-06 06:20:09Z

2

Sounds like you are looking for a way to declare an object structure and fields, which is what interface is for.

Example:

interface Student {
    id: number;
    name: string;
    age: number;
}

Usage:

const students: Student[] = [{
    id: 1,
    name: 'Sean Grey',
    age: 24
}];

answered Oct 6, 2019 at 6:20

Lior Hai

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