mirror of
https://github.com/denoland/deno
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21 lines
508 B
JavaScript
21 lines
508 B
JavaScript
// Importing the same module in parallel, the module should only be
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// instantiated once.
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const promises = new Array(100)
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.fill(null)
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.map(() => import("./subdir/mod1.ts"));
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Promise.all(promises).then((imports) => {
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const mod = imports.reduce((first, cur) => {
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if (typeof first !== "object") {
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throw new Error("Expected an object.");
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}
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if (first !== cur) {
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throw new Error("More than one instance of the same module.");
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}
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return first;
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});
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mod.printHello3();
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});
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