Numeric Separators in JavaScript

Numeric Separators give us the ability to separate thousands with an underscore (_) in numeric literals.

It makes our code more informative and readable.

let series = 10000;

Numeric Separators in javascript, enables underscore as a separator in numeric literals to improve readability.

Example:

let series = 1_00_00;

You can also use this for binary, octal, and hex numbers.

Binary Number 👻

let series1 = 0b1010_0101_1001;
console.log(series1); // 2649

Octal Number: 👻

let series2 = 0o2_3_5_7;
console.log(series2); // 1263

Hex Number: 👻

let series3 = 0xA_B_C_D_E;
console.log(series3); // 703710

Below limitation snippet will throw SyntaxError

More than one underscore in a row is not allowed
```
let series1 = 100__000;
```
Can not be used after leading 0
```
let series2 = 0_1;
```
Not allowed at the end of numeric literals
```
let series3= 100_;
```

This feature has pretty good support in recent versions of browsers.

Check this out 👇