Breaking News: Grepper is joining You.com. Read the official announcement!

Extract and Exclude type TypeScript

Husnain Syed answered on May 28, 2022 Popularity 10/10 Helpfulness 4/10

answer Extract and Exclude type TypeScript

related Typescript Exclude

Extract and Exclude type TypeScript

Comment

type Extract<T, U> = T extends U ? T : never;
type Exclude<T, U> = T extends U ? never : T; 
type a = Exclude<'a' | 'b' | 'c', 'a'>;//'b' | 'c'
type b = Extract<'a' | 'b' | 'c', 'a' | 'b'>; // 'a' | 'b'

Popularity 10/10 Helpfulness 4/10 Language typescript

Source: Grepper

Tags: extract typescript

Link to this answer
Share Copy Link

Contributed on May 28 2022

Husnain Syed

0 Answers Avg Quality 2/10

Closely Related Answers

Typescript Exclude

Comment

type NumberOrString = number | string;
type OnlyNumber = Exclude<NumberOrString, string>;

// same as:
// type OnlyNumber = number;

const num: OnlyNumber = 5;
const str: OnlyNumber = 'hello'; // Error: Type '"hello"' is not assignable to type 'number'.

Popularity 9/10 Helpfulness 2/10 Language typescript

Source: dev.to

Tags: typescript t

Link to this answer
Share Copy Link

Contributed on Apr 10 2023

Azizul7m

0 Answers Avg Quality 2/10

Extract and Exclude type TypeScript

Contents

More Related Answers

Extract and Exclude type TypeScript

Closely Related Answers

Typescript Exclude

Grepper

Documentation

Social

Legal

Contact

Oops, You will need to install Grepper and log-in to perform this action.