rc-js-util/bin/esm/map/impl/map-clearing-delete-from-set.js

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

export function mapClearingDeleteFromSet(map, key, value) {
    const values = map.get(key);
    if (values != null) {
        values.delete(value);
        if (values.size === 0) {
            map.delete(key);
        }
        return true;
    }
    return false;
}
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