sc4/lib/core/exemplar-properties-types.js

A command line utility for automating SimCity 4 modding tasks & modifying savegames

/**
 * Determines whether the given key can serve as an exemplar property key.
 *
 * @{param} key {unknown}
 */
export function isKey(key) {
    if (typeof key === 'number' || typeof key === 'string') {
        return true;
    }
    else if (typeof key === 'object' && key !== null) {
        return Symbol.toPrimitive in key;
    }
    else {
        return false;
    }
}