File: extendGenericArray.js

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node-typescript 4.8.4%2Bds1-2
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//// [extendGenericArray.ts]
interface Array<T> {
    foo(): T;
}

var arr: string[] = [];
var x: number = arr.foo();

//// [extendGenericArray.js]
var arr = [];
var x = arr.foo();