How can I convert a String value to number of an array object inside another array

Asked Mar 01 '22 at 09:57

Active Mar 01 '22 at 10:00

Viewed 24 times

I get a json data and one of the values in it is a String that I want to convert to number. I am dealing with two dimensional array and I am having difficulties to access the value.

This is my json:

 {
  "products": [
    {
      "id": "AAA",
      "description": "About AAA"
    },
    {
      "id": "BBB",
      "description": "about BBB",
      "values": [
        {
          "name": "CustomerB",
          "value": "1"
        },
        {
          "name": "CustomerB",
          "value": "3"
        }
      ]
    }
    ]
}

I need to convert value in values from String to number And here is how I try to use map

let newArray = products.map(product => {
        product.values.map(item => {
          ...item, value: parseInt(item.value)
        });
      });

But newArray is always undefined. How can I convert a value, string to number in two dimensional array without changing anything else?

edited Mar 01 '22 at 10:00

Ben Wainwright

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asked Mar 01 '22 at 09:57

Edenco

Cant you fix the source to output it as a number? – Lain Mar 01 '22 at 09:59
4

because you need a `return` in the `() => { return something here}` – Bravo Mar 01 '22 at 09:59
@Lain how do you do that? – Edenco Mar 01 '22 at 10:01
to be honest, that code wouldn't even run as it is – Bravo Mar 01 '22 at 10:02
1

@Edenco: By outputting `"value": 1` instead of `"value": "1"`. – Lain Mar 01 '22 at 10:02
Should I use two return since its two map? – Edenco Mar 01 '22 at 10:03
@Lain I get it as a string and to change it I have to loop through I guess – Edenco Mar 01 '22 at 10:04
It's not just the return that is missing, there's still the need to recreate the product object with the new mapped values – Alykam Burdzaki Mar 01 '22 at 10:07
it's just two returns that are missing, or to create new objects as well you could use implicit returns and spread each product `products.map(product => ({ ...product, values: product.values.map(item => ({ ...item, value: parseInt(item.value) })) }));` – pilchard Mar 01 '22 at 10:17

How can I convert a String value to number of an array object inside another array

0 Answers0