Completed Challenges

Chainable options are commonly used in Javascript. But when we switch to TypeScript, can you prope

Deep Readonly

Implement a generic DeepReadonly<T> which make every parameter of an object - and its sub-object

Get Return Type

Implement the built-in ReturnType<T> generic without using it.

For example


const fn = (v

Omit

Implement the built-in Omit<T, K> generic without using it.

Constructs a type by picking all pr

Readonly 2

Implement a generic MyReadonly2<T, K> which takes two type argument T and K.

K specify th

Get Optional

Implement the advanced util type GetOptional<T>, which remains all the optional fields

For exam

Generic Function Arguments

Give generic function types to your functions

Generic Type Arguments

BEGINNER

@dimitropoulos

2 years ago

Generic types are like function arguments.

Tuple to Union

Implement a generic TupleToUnion<T> which covers the values of a tuple to its values union.

For

Get Required

Implement the advanced util type GetRequired<T>, which remains all the required fields

For exam

Required Keys

Implement the advanced util type RequiredKeys<T>, which picks all the required keys into a union

Simple Vue

Implement a simpiled version of a Vue-like typing support.

By providing a function name `SimpleVu

Union to Intersection

Implement the advanced util type UnionToIntersection<U>

For example


type I = UnionToInte

Optional Keys

Implement the advanced util type OptionalKeys<T>, which picks all the optional keys into a union

Capitalize Words

Implement CapitalizeWords<T> which converts the first letter of each word of a string to upp

Get Readonly Keys

EXTREME