ReplaceAll

Since 1.1.0

Replace all occurrences of a substring.

Signature

type ReplaceAll<S extends string, From extends string, To extends string> = 
  From extends ''
    ? S
    : S extends `${infer Before}${From}${infer After}`
      ? `${Before}${To}${ReplaceAll<After, From, To>}`
      : S

Parameters

Parameter	Description
S	The source string
From	The substring to replace
To	The replacement string

Examples

Basic Usage

import type { ReplaceAll } from 'uni-types'

type A = ReplaceAll<'hello world world', 'world', 'there'>
// 'hello there there'

type B = ReplaceAll<'aaa', 'a', 'b'>
// 'bbb'

Snake to Camel Case

type SnakeCase = 'hello_world_foo_bar'
type CamelCase = ReplaceAll<SnakeCase, '_', ''>
// 'helloworldfoobar'

Related

• Replace - Replace first occurrence only