Skip to content

DEV Community

Typescript WTF Moments Series' Articles

Back to Acid Coder's Series

Acid Coder

Aug 7 '22

Typescript WTF Moments 1: Mixing String Literal Key And String Key In Object Literal Type

#webdev #tutorial #programming #typescript

1 min read

Acid Coder

Aug 7 '22

Typescript WTF Moments 2: keyof {[x:string]:string} is string | number

#webdev #programming #tutorial #typescript

1 min read

Acid Coder

Aug 8 '22

Typescript WTF Moments 3: Type of Key is `string` if Key is Template Literal `a/${string}`

#webdev #tutorial #programming #typescript

1 min read

Acid Coder

Aug 8 '22

Typescript WTF Moments 4: never extends `${infer P}` yield different result than never extends `${infer P}/`

#programming #webdev #tutorial #typescript

1 min read

Acid Coder

Aug 10 '22

Typescript WTF Moments 5: const a = 'a' is not equal to const a = 'a' as const and const a:'a'='a'

#webdev #typescript #programming #tutorial

1 min read

Acid Coder

Aug 19 '22

Typescript WTF Moments 6: Non Collapsing Object Unions

#typescript #webdev #programming #tutorial

1 min read

Acid Coder

Aug 22 '22

Typescript WTF Moments 7: Boolean can extends Record<infer X,unknown>

#webdev #typescript #programming #tutorial

1 min read

Acid Coder

Sep 22 '22

Typescript WTF Moments 8: Type Level Equality Not Working With Intersection

#typescript #webdev #programming #tutorial

1 min read

Acid Coder

Dec 20 '22

Typescript WTF Moments 9: Evolving Empty Array Type

#programming #javascript #webdev #typescript

1 min read

Acid Coder

Dec 23 '22

Typescript WTF Moments 10: The Special Case: T[] extends B[]

#javascript #programming #typescript #webdev

2 min read

Acid Coder

Dec 24 '22

Typescript WTF Moments 11: Function Unions: any Param Is Not any

#webdev #javascript #typescript #programming

1 min read

Acid Coder

Jun 20 '23

Typescript WTF Moment 12: Beware of Object Literal Unions

#tutorial #programming #typescript #webdev

2 min read