httpsnippet-lite/dist/esm/helpers/reducer.js

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export const reducer = (accumulator, pair) => {
    if (pair.value === void 0) {
        return accumulator;
    }
    const currentValue = accumulator[pair.name];
    if (currentValue === undefined) {
        accumulator[pair.name] = pair.value;
        return accumulator;
    }
    // If we already have it as array just push the value
    if (Array.isArray(currentValue)) {
        currentValue.push(pair.value);
        return accumulator;
    }
    // convert to array since now we have more than one value for this key
    accumulator[pair.name] = [currentValue, pair.value];
    return accumulator;
};