Convert Large String Number to Number

Question

I have this string

let a = '1589480087711852280'

How do I convert this to a number?

If I do

let a = '1589480087711852280'
a = Number(a)
console.log(a)

It prints 1589480087711852300 and just rounds it.

How do I get it to print 1589480087711852280 ?

It tried BigInt and that just puts an n at the end of the number.

I'm using this to query within mongodb so its not pulling the right search.

Answer 1

Use BigInt :

let a = '1589480087711852280'
a = BigInt(a)
console.log(a + 1n) // 1589480087711852281n