mirror of
https://github.com/vercel-labs/scriptc.git
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Chris Tate
94fd361b54
Represent ordinary JavaScript arrays with hole, value, and explicit-undefined states; add sparse side storage and carry missing values through the frontend, native backends, runtime, and Node-facing consumers.
25 lines
868 B
TypeScript
25 lines
868 B
TypeScript
const sparse: number[] = [];
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sparse[1] = 7;
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sparse.length = 4;
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const values = sparse.toReversed();
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const result = values.reduce((acc, value, index) => {
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console.log("left", index, typeof acc, acc, typeof value, value);
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return value;
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}, 99);
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console.log("result", typeof result, result);
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function choose(acc: number, value: number, index: number): number {
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console.log("right", index, typeof acc, acc, typeof value, value);
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return value;
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}
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const chooseAlias = choose;
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const right = values.reduceRight(chooseAlias, 88);
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console.log("right-result", typeof right, right);
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const empty: number[] = [];
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const seed = empty.reduce((acc, value) => acc + value, 23);
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console.log("empty", seed);
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const one: number[] = [];
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one.length = 1;
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const denseOne = one.toReversed();
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const only = denseOne.reduce((acc, value) => acc + value);
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console.log("only", typeof only, only);
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