Created
May 7, 2022 15:37
-
-
Save ljbc1994/36be98c2e4fe87baf6a2c18f7987d180 to your computer and use it in GitHub Desktop.
If you need a spongebob type
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| type CharMap<T extends string = 'aA-bB-cC-dD-eE-fF-gG-hH-iI-jJ-kK-lL-mM-nN-oO-pP-qQ-rR-sS-tT-uU-vV-wW-xX-yY-zZ'> = | |
| T extends `${infer Lower}-${infer Upper}` | |
| ? Lower | CharMap<Upper> | |
| : T | |
| type CharSplit<T extends string> = T extends `${infer Lower}${infer Upper}` ? [Lower, Upper] : T | |
| type CharObj = { [T in CharMap as CharSplit<T>[0]]: CharSplit<T>[1] }; | |
| type GetUpperCase<TChar extends keyof CharObj> = CharObj[TChar] | |
| type Spongebobify<TPhrase extends string, TResult extends string = '', TFlip = 0> = | |
| TPhrase extends `${infer Head}${infer Tail}` | |
| ? Head extends keyof CharObj | |
| ? Spongebobify<Tail, `${TResult}${TFlip extends 1 ? GetUpperCase<Head> : Head}`, TFlip extends 1 ? 0 : 1> | |
| : Spongebobify<Tail, `${TResult}${Head}`, TFlip> | |
| : TResult | |
| type Test = Spongebobify<'my name is mary celeste'> | |
| // type Test = "mY nAmE iS mArY cElEsTe" |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment