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/// <reference path='fourslash.ts'/>
////interface Collection<T> {
//// length: number;
//// add(x: T): void;
//// remove(x: T): boolean;
////}
////interface Combinators {
//// forEach<T>(c: Collection<T>, f: (x: T) => any): void;
//// forEach<T, U>(c: Collection<T>, f: (x: T) => U): void;
////}
////var c2: Collection<number>;
////var c3: Collection<Collection<number>>;
////var _: Combinators;
////var r = _.forEach(c2, (x) => { return x./*1*/toFixed() });
////var r2 = _.forEach(c3, (x) => { return x./*2*/toFixed() });
/////*3*/
const verifyCompletions = () =>
verify.completions(
{ marker: "1", includes: "toFixed" },
{ marker: "2", exact: ["add", "length", "remove"] },
);
verifyCompletions();
goTo.marker('3');
edit.insert(`class A {
foo() { }
}
var c4: Collection<A>;
var r3 = _.forEach(c4, (x) => { return x.foo() });
`);
verifyCompletions();
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