rc-js-util/bin/esm/map/impl/map-set-difference.js

A collection of TS and C++ utilities to help writing performant and correct applications, achieved through strict typing and (removable) invariant checking.

/**
 * @public
 * returns items in A not in B.
 *
 * @remarks
 * See {@link mapSetDifference}.
 */
export function mapSetDifference(a, b) {
    const result = new Map();
    a.forEach((item, key) => {
        if (!b.has(key)) {
            result.set(key, item);
        }
    });
    return result;
}
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