In order to utilize a third party API, I have to convert the ID number to a hexadecimal. I converted the ID with https://www.rapidtables.com/convert/number/decimal-to-hex.html and got 711DD21A11FA9223FEB43849FF1F3569DC024DCE000000000000150000000001. This works when I use it with the API.
My understanding is that you can perform the same conversion with JS with Number().toString(16). However, when I use that function I get 711dd21a11fa9400000000000000000000000000000000000000000000000000.
The latter value does not work with the API. Any insight into why the JS function returns a different value?
>Solution :
Your number is too big for JavaScript.
The Number.MAX_SAFE_INTEGER constant represents the maximum safe integer in JavaScript.
I advise you to use the BigInt data type.
BigInt is a primitive wrapper object used to represent and manipulate primitive bigint values – which are too large to be represented by the number primitive.
Exampe:
// Your ID in decimal
const decimalNumber = BigInt(10000000000000000);
// Your ID in hex
const hexNumber = decimalNumber.toString(16);
// Conversion to a string, since BigInt is not displayed in the console for demonstration.
console.log(decimalNumber.toString());
console.log(hexNumber);