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x/ramda/dissocPath.js

:ram: Practical functional Javascript
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import _curry2 from './internal/_curry2';import _isInteger from './internal/_isInteger';import _isArray from './internal/_isArray';import assoc from './assoc';import dissoc from './dissoc';import remove from './remove';import update from './update';

/** * 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 * @typedefn Idx = String | Int * @sig [Idx] -> {k: v} -> {k: v} * @param {Array} path The path to the value to omit * @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: {}}} */var dissocPath = _curry2(function dissocPath(path, obj) { switch (path.length) { case 0: return obj; case 1: return _isInteger(path[0]) && _isArray(obj) ? remove(path[0], 1, obj) : dissoc(path[0], obj); default: var head = path[0]; var tail = Array.prototype.slice.call(path, 1); if (obj[head] == null) { return obj; } else if (_isInteger(head) && _isArray(obj)) { return update(head, dissocPath(tail, obj[head]), obj); } else { return assoc(head, dissocPath(tail, obj[head]), obj); } }});export default dissocPath;