wretch/dist/utils.js

A tiny wrapper built around fetch with an intuitive syntax.

export function extractContentType(headers = {}) {
    const normalizedHeaders = headers instanceof Array ? Object.fromEntries(headers) : headers;
    for (const k in normalizedHeaders) {
        if (k.toLowerCase() === "content-type")
            return normalizedHeaders[k];
    }
}
export function isLikelyJsonMime(value) {
    return /^application\/.*json/.test(value);
}
export const mix = (one, two, mergeArrays = false) => {
    const acc = { ...one };
    for (const key in two) {
        if (!Object.prototype.hasOwnProperty.call(two, key))
            continue;
        const value = one[key];
        const newValue = two[key];
        acc[key] = Array.isArray(value) && Array.isArray(newValue) ?
            mergeArrays ? [...value, ...newValue] : newValue :
            typeof value === "object" && typeof newValue === "object" ?
                mix(value, newValue, mergeArrays) :
                newValue;
    }
    return acc;
};
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