JavaScript RegExp Group [0-9]

Do a global search for the numbers 1, 2, 3 and 4 in a string:

let text = "123456789";
let pattern = /[1-4]/g;

Description

The [0-9] expression is used to find any character between the brackets.

The digits inside the brackets can be any numbers or span of numbers from 0 to 9.

Tip: Use the [^0-9] expression to find any character that is NOT a digit.

/[0-9]/ is an ECMAScript1 (ES1) feature.

ES1 (JavaScript 1997) is fully supported in all browsers:


Chrome	Edge	Firefox	Safari	Opera	IE
Yes	Yes	Yes	Yes	Yes	Yes

new RegExp("[ 0-9]")

or simply:

/[ 0-9]/

new RegExp("[ 0-9]", "g")

or simply:

/[ 0-9]/g

Use the [^0-9] expression to find any character that is NOT a digit.

Do a global search for the number "1" in a string:

let text = "12121212";
let pattern = /[1]/g;

In JavaScript, a regular expression text search, can be done with different methods.

With a pattern as a regular expression, these are the most common methods: