propOr.js•1.01 kB
var _curry3 = require('./internal/_curry3');
var _has = require('./internal/_has');
/**
* If the given, non-null object has an own property with the specified name,
* returns the value of that property. Otherwise returns the provided default
* value.
*
* @func
* @memberOf R
* @since v0.6.0
* @category Object
* @sig a -> String -> Object -> a
* @param {*} val The default value.
* @param {String} p The name of the property to return.
* @param {Object} obj The object to query.
* @return {*} The value of given property of the supplied object or the default value.
* @example
*
* var alice = {
* name: 'ALICE',
* age: 101
* };
* var favorite = R.prop('favoriteLibrary');
* var favoriteWithDefault = R.propOr('Ramda', 'favoriteLibrary');
*
* favorite(alice); //=> undefined
* favoriteWithDefault(alice); //=> 'Ramda'
*/
module.exports = _curry3(function propOr(val, p, obj) {
return (obj != null && _has(p, obj)) ? obj[p] : val;
});