19 lines
415 B
TypeScript
19 lines
415 B
TypeScript
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// https://heycam.github.io/webidl/#EnforceRange
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const enforceRange = (
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num: number,
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type: "MAX_SAFE_INTEGER" | "unsigned long",
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) => {
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const min = 0;
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const max = type === "unsigned long" ? 4294967295 : 9007199254740991;
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if (isNaN(num) || num < min || num > max) {
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throw new TypeError();
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}
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if (num >= 0) {
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return Math.floor(num);
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}
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};
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export default enforceRange;
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