dissocPath.js•1.07 kB
var _curry2 = require('./internal/_curry2');
var _slice = require('./internal/_slice');
var assoc = require('./assoc');
var dissoc = require('./dissoc');
/**
* Makes a shallow clone of an object, omitting the property at the given path.
* Note that this copies and flattens prototype properties onto the new object
* as well. All non-primitive properties are copied by reference.
*
* @func
* @memberOf R
* @since v0.11.0
* @category Object
* @sig [String] -> {k: v} -> {k: v}
* @param {Array} path the path to set
* @param {Object} obj the object to clone
* @return {Object} a new object without the property at path
* @see R.assocPath
* @example
*
* R.dissocPath(['a', 'b', 'c'], {a: {b: {c: 42}}}); //=> {a: {b: {}}}
*/
module.exports = _curry2(function dissocPath(path, obj) {
switch (path.length) {
case 0:
return obj;
case 1:
return dissoc(path[0], obj);
default:
var head = path[0];
var tail = _slice(path, 1);
return obj[head] == null ? obj : assoc(head, dissocPath(tail, obj[head]), obj);
}
});