mapObjIndexed.js•891 B
var _curry2 = require('./internal/_curry2');
var _reduce = require('./internal/_reduce');
var keys = require('./keys');
/**
* An Object-specific version of `map`. The function is applied to three
* arguments: *(value, key, obj)*. If only the value is significant, use
* `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
*
* var values = { x: 1, y: 2, z: 3 };
* var prependKeyAndDouble = (num, key, obj) => key + (num * 2);
*
* R.mapObjIndexed(prependKeyAndDouble, values); //=> { x: 'x2', y: 'y4', z: 'z6' }
*/
module.exports = _curry2(function mapObjIndexed(fn, obj) {
return _reduce(function(acc, key) {
acc[key] = fn(obj[key], key, obj);
return acc;
}, {}, keys(obj));
});