Implement Python liked any function in the type system. A type takes the Array and returns true if any element of the Array is true. If the Array is empty, return false.
For example:
type Sample1 = AnyOf<[1, '', false, [], {}]> // expected to be true.
type Sample2 = AnyOf<[0, '', false, [], {}]> // expected to be false.
type Falsy = false | 0 | '' | [] | Record<PropertyKey, never>
type AnyOf<T extends readonly any[]> = T extends [infer First, ...(infer REST)]
? First extends Falsy
? AnyOf<REST>
: true
: false;
type AnyOf<T extends readonly any[]> = T extends Array<0 | '' | false | [] | Record<PropertyKey, never>> ? false : true标签：39,Typescript,false,type,extends,Array,true,AnyOf From： https://www.cnblogs.com/Answer1215/p/16736592.html