JavaScript BigInt allows you to represent whole numbers larger 253 - 1. The bigint is the primitive type like number, string, symbol, boolean undefined, and null.
BigInt( number ) or Appending n to end of an integer literal
A BigInt is created by appending n to the end of an integer literal or by calling the function BigInt that creates BigInt from strings, numbers, etc.
JavaScript BigInt
Simple example code.
<!DOCTYPE html>
<html>
<body>
<script>
// Parameter in decimal format
var bigNum = BigInt("123422222222222222222222222222222222222");
console.log(bigNum);
// Parameter in hexadecimal format
var bigHex = BigInt("0x1ffffffeeeeeeeeef");
console.log(bigHex);
// Parameter in binary format
var bigBin = BigInt("0b1010101001010101001111111111111111");
console.log(bigBin);
</script>
</body>
</html>
Output:
Type: The type of a BigInt is bigint. For example:
console.log(typeof bigInt); // bigint
console.log(typeof BigInt(100) === 'bigint'); // trueOperators
The BigInt supports the following operator +, *, -, **, %, bitwise operators except >>> (zero-fill right shift). It doesn’t support the unary operator (+).
The / operator will also work with the whole numbers. However, the result will not return any fractional digits. For example:
let result = 3n / 2n;
console.log(result); // 1n, not 1.5nComparisons
A BigInt is not strictly equal (===) to a Number:
console.log(1n === 1); // falseConditionals
A BigInt is converted to a Boolean via the Boolean() function in conditionals such as if statement or logical operators ||, &&, !. In other words, it works like Number in these cases. For example:
let count = 0n;
if(count) {
console.log(true);
} else {
console.log(false);
}Do comment if you have any doubts or suggestions on this JS topic.
Note: The All JS Examples codes are tested on the Firefox browser and the Chrome browser.
OS: Windows 10
Code: HTML 5 Version