shallow-contains/dist/cjs/index.js

partial shallow equality comparison between two values

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
function shallowContains(input, contains, comparator) {
    const equals = comparator || ((a, b) => a === b);
    if (Array.isArray(contains) || contains instanceof Set) {
        const inputSet = toSet(input);
        for (let v of contains) {
            if (!comparator) {
                if (!inputSet.has(v))
                    return false;
            }
            else {
                for (let inputVal of inputSet) {
                    if (equals(inputVal, v))
                        return true;
                }
            }
        }
        return true;
    }
    const containsEntries = toEntries(contains);
    const isMap = input instanceof Map;
    for (let [k, v] of containsEntries) {
        const inputVal = isMap ? input.get(k) : input[k];
        if (!equals(inputVal, v))
            return false;
    }
    return true;
}
exports.default = shallowContains;
function toSet(val) {
    if (Array.isArray(val))
        return new Set(val);
    if (val instanceof Set)
        return val;
    if (val instanceof Map)
        return new Set(val.values());
    // @ts-ignore
    return new Set(Object.values(val));
}
function toEntries(val) {
    // @ts-ignore
    return val.entries ? val.entries() : Object.entries(val);
}
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