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x/ramda/mapObjIndexed.js

:ram: Practical functional Javascript
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import _curry2 from './internal/_curry2';import _reduce from './internal/_reduce';import keys from './keys';

/** * An Object-specific version of [`map`](#map). The function is applied to three * arguments: *(value, key, obj)*. If only the value is significant, use * [`map`](#map) instead. * * @func * @memberOf R * @since v0.9.0 * @category Object * @sig ((*, String, Object) -> *) -> Object -> Object * @param {Function} fn * @param {Object} obj * @return {Object} * @see R.map * @example * * const xyz = { x: 1, y: 2, z: 3 }; * const prependKeyAndDouble = (num, key, obj) => key + (num * 2); * * R.mapObjIndexed(prependKeyAndDouble, xyz); //=> { x: 'x2', y: 'y4', z: 'z6' } */var mapObjIndexed = _curry2(function mapObjIndexed(fn, obj) { return _reduce(function(acc, key) { acc[key] = fn(obj[key], key, obj); return acc; }, {}, keys(obj));});export default mapObjIndexed;