File: genericArray1.types

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=== tests/cases/compiler/genericArray1.ts ===
/*
var n: number[];

interface Array<T> {
map<U>(callbackfn: (value: T, index: number, array: T[]) => U, thisArg?: any): U[];
}

interface String{
	length: number;
}
*/

var lengths = ["a", "b", "c"].map(x => x.length);
>lengths : number[]
>["a", "b", "c"].map(x => x.length) : number[]
>["a", "b", "c"].map : <U>(callbackfn: (value: string, index: number, array: string[]) => U, thisArg?: any) => U[]
>["a", "b", "c"] : string[]
>"a" : "a"
>"b" : "b"
>"c" : "c"
>map : <U>(callbackfn: (value: string, index: number, array: string[]) => U, thisArg?: any) => U[]
>x => x.length : (x: string) => number
>x : string
>x.length : number
>x : string
>length : number