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//@ts-nocheck |
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import { ClassValue } from "../../defs" |
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export {} |
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// type Excluder< |
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// S extends Record<string, ClassValue>, |
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// E extends {[K in keyof S]?: ClassValue} |
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// > = { [P in Exclude<keyof S, keyof E>]: S[P]; } |
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// interface Exclusion< |
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// S extends Record<string, ClassValue> |
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// > { |
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// (source: S, ex: {[K in keyof S]?: ClassValue}): Excluder<S, typeof ex> |
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// } |
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function exclusion< |
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S extends Record<string, ClassValue>, |
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>( |
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source: S, ex: {[K in keyof S]?: ClassValue} |
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): typeof ex extends Record<infer E, any> |
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? { [P in Exclude<keyof S, E>]: S[P]; } |
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: never |
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{ |
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const $return = {...source} |
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for (const k in ex) { |
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delete $return[k] |
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} |
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//@ts-expect-error |
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return $return |
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} |
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const source: Record<"a"|"b"|"c"|"d"|"e", ClassValue> = {a: "a", b: undefined, c: "c", d: undefined, e: undefined} |
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const step0 = exclusion( |
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source, |
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//@ts-expect-error 'z' does not exist in type |
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{z: undefined} |
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) |
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, answ0: typeof step0 = { |
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//@ts-expect-error Type 'undefined' is not assignable to type 'never' |
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whatever: undefined |
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} |
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, step1 = exclusion(source, {a: "a", b: undefined}) |
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, step2 = exclusion(step1, {"c": undefined}) |
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//@ts-expect-error Property 'd' is missing |
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, answ |
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: typeof step2 = { |
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e: "", |
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//@ts-expect-error Object literal may only specify known properties, and 'z' |
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z: "" |
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} |
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export {step2, answ0} |
askirmas /
react-classnaming
