JavaScript RegExp {X} Quantifier

A global search for a substring that contains a sequence of four digits:

let text = "100, 1000 or 10000?";
let pattern = /\d{4}/g;

Description

The n{X} quantifier matches any string that contains a sequence of X n's.

X must be a number.

/n{X}/ 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(" n{ X}")

or simply:

/ n{ X}/

new RegExp(" n{ X}", "g")

or simply:

/ n{ X}/g