24 lines
672 B
TypeScript
24 lines
672 B
TypeScript
export function fromEntriesWithDuplicateKeys(entries: IterableIterator<[string, string]> | null) {
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const result: Record<string, string | string[]> = {};
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if (entries === null) {
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return result;
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}
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// Consider setting atleast ES2015 as target
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// eslint-disable-next-line @typescript-eslint/ban-ts-comment
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// @ts-ignore
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for (const [key, value] of entries) {
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if (result.hasOwnProperty(key)) {
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let currentValue = result[key];
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if (!Array.isArray(currentValue)) {
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currentValue = [currentValue];
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}
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currentValue.push(value);
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result[key] = currentValue;
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} else {
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result[key] = value;
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}
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}
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return result;
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} |