BigInt in javascript

 BigInt values represent numeric values which are too large to be represented by the number

It is created by appending n to the end of an integer literal,

or by calling the BigInt() function

e.g.

const bigIntNumber = 1n;

A BigInt value cannot be used with methods in the built-in Math

object and cannot be mixed with a Number value in operations;

they must be coerced to the same type. however, as the precision of

a BigInt value may be lost when it is coerced to a Number value.

typeof 1n === "bigint"; // true

typeof BigInt("1") === "bigint"; // true

A BigInt value can also be wrapped in an Object:

typeof Object(1n) === "object"; // true

Comparision:

0n === 0; // false different types

0n == 0; // true

Sorting:

const mixed = [4n, 6, -12n, 10, 4, 0, 0n];

mixed.sort((a, b) => a - b);

sorting using previous function won't work since subtraction will

not work with mixed types

You will get follwoing error:

TypeError: can't convert BigInt value to Number value

How to sort mixed array with bigInt

mixed.sort((a, b) => (a < b ? -1 : a > b ? 1 : 0));

The following operators may be used with BigInt values or object-wrapped

BigInt values:

+ * - % **

Also unsupported is the unary operator (+),

Here consider following code

var x = 1n

var y = 5

console.log(y - x)

we get error as

TypeError: Cannot mix BigInt and other types, use explicit conversions

with explicit conversion

var x = 1n

var y = 5

console.log(BigInt(y) - x)

output:

4n

Negative BigInt

Consider following code

var x = -1n

var y = 5

console.log(BigInt(y) - x)

Output:

6n