Javascript: Convert an array of strongly typed to JSON

Question

I have an array of a class A. Class A contains 2 properties as Weight and Date.

var array = [
              A{Weight: 50, Date: 01/01/2009}, 
              A{Weight: 55, Date: 01/02/2009}, 
              A{Weight: 60, Date: 01/03/2009},... 
]

How can I convert the above array to something like this:

var array = [
              {Weight: 50, Date: 01/01/2009}, 
              {Weight: 55, Date: 01/02/2009}, 
              {Weight: 60, Date: 01/03/2009},... 
]

I do not see any difference between the two array except an extra `A` — brk, Oct 19 '18 at 03:03
Related: https://stackoverflow.com/questions/40201589/serializing-an-es6-class-object-as-json — DBrowne, Oct 19 '18 at 03:06

score 0 · Accepted Answer · answered Oct 19 '18 at 03:44

Your code isn't valid JavaScript code. I did a little restructuring and here you have one way of achieving what you need, meaning it can be done in different ways, but since your code is not valid, I was restricted. I suggest going over official documentation. MDN is a great starting point. I also recommend this article. Anyways, I hope this helps you ;)

// A valid JS array would look something like this:

const array = [
               {a: {Weight: 50, Date: '01/01/2009'}}, 
               {a: {Weight: 50, Date: '01/01/2009'}}, 
               {a: {Weight: 50, Date: '01/01/2009'}}
];

// Here we define our new array that's going to contain our 'mutated' data

let newArr = [];

// Here we're going over our original array and push redefined data to our 'newArr'

array.map(x => {
  newArr.push(x.a);
});

// Now, let's see how that looks like :)

console.log(newArr);

Most would write it as `let newArr = array.map(o => o.a)` and save some keystrokes. ;-) — RobG, Oct 19 '18 at 05:58
@RobG I know **:)** I deliberately did it like this to show a little more detail about the process — Dženis H., Oct 19 '18 at 06:07

Javascript: Convert an array of strongly typed to JSON

1 Answers1