33 lines
925 B
TypeScript
33 lines
925 B
TypeScript
function combine<T, U>(x: T, y: U): [T, U] {
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return [x, y];
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}
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var combineResult = combine("string", 10);
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var combineEle1 = combineResult[0]; // string
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var combineEle2 = combineResult[1]; // number
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function zip<T, U>(array1: T[], array2: U[]): [[T, U]] {
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if (array1.length != array2.length) {
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return [[undefined, undefined]];
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}
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var length = array1.length;
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var zipResult: [[T, U]];
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for (var i = 0; i < length; ++i) {
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zipResult.push([array1[i], array2[i]]);
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}
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return zipResult;
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}
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var zipResult = zip(["foo", "bar"], [5, 6]);
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var zipResultEle = zipResult[0]; // [string, number]
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var zipResultEleEle = zipResult[0][0]; // string
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// #33559 and #33752
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declare function f1<T1, T2>(values: [T1[], T2[]]): T1;
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declare function f2<T1, T2>(values: readonly [T1[], T2[]]): T1;
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let expected: "a";
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expected = f1(undefined as ["a"[], "b"[]]);
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expected = f2(undefined as ["a"[], "b"[]]);
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