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x/ramda/source/dissocPath.js

:ram: Practical functional Javascript
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import _curry2 from './internal/_curry2.js';import _dissoc from './internal/_dissoc.js';import _isInteger from './internal/_isInteger.js';import _isArray from './internal/_isArray.js';import assoc from './assoc.js';
/** * Makes a shallow clone of an object. Note that this copies and flattens * prototype properties onto the new object as well. All non-primitive * properties are copied by reference. * * @private * @param {String|Integer} prop The prop operating * @param {Object|Array} obj The object to clone * @return {Object|Array} A new object equivalent to the original. */function _shallowCloneObject(prop, obj) { if (_isInteger(prop) && _isArray(obj)) { return [].concat(obj); }
var result = {}; for (var p in obj) { result[p] = obj[p]; } return result;}
/** * 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 | Symbol * @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) { if (obj == null) { return obj; }
switch (path.length) { case 0: return obj; case 1: return _dissoc(path[0], obj); default: var head = path[0]; var tail = Array.prototype.slice.call(path, 1); if (obj[head] == null) { return _shallowCloneObject(head, obj); } else { return assoc(head, dissocPath(tail, obj[head]), obj); } }});export default dissocPath;