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feat ts-assignment #245

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feat ts-assignment #245

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12 changes: 12 additions & 0 deletions week-7/typescript-assignment/index.ts
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Original file line number Diff line number Diff line change
@@ -0,0 +1,12 @@
type Pair<T> = [T, T];

function swapPair<T>(a: T, b: T): Pair<T> {
return [b, a];
}

const output1: Pair<number> = swapPair(1, 2);
const output2: Pair<boolean> = swapPair(true, false);
const output3: Pair<string> = swapPair("c", "a");
const output4: Pair<string> = swapPair("c", 1); // error since mismatch types

console.log(output4);