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GeezerVison is showing github.com — TypeScriptToLua/src/lualib/ArraySetLength.ts at master · TypeScriptToLua/TypeScriptToLua

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ArraySetLength.ts

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export function __TS__ArraySetLength<T>(this: T[], length: number): number {
if (
length < 0 ||
length !== length || // NaN
length === Infinity || // Infinity
Math.floor(length) !== length
) {
// non-integer
throw `invalid array length: ${length}`;
}
for (const i of $range(length + 1, this.length)) {
this[i - 1] = undefined!;
}
return length;
}
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