55 lines
1.7 KiB
JavaScript
55 lines
1.7 KiB
JavaScript
import _curry3 from "./internal/_curry3.js";
|
|
import _has from "./internal/_has.js";
|
|
import _isArray from "./internal/_isArray.js";
|
|
import _isInteger from "./internal/_isInteger.js";
|
|
import assoc from "./assoc.js";
|
|
import isNil from "./isNil.js";
|
|
/**
|
|
* Makes a shallow clone of an object, setting or overriding the nodes required
|
|
* to create the given path, and placing the specific value at the tail end of
|
|
* that 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 v0.8.0
|
|
* @category Object
|
|
* @typedefn Idx = String | Int
|
|
* @sig [Idx] -> a -> {a} -> {a}
|
|
* @param {Array} path the path to set
|
|
* @param {*} val The new value
|
|
* @param {Object} obj The object to clone
|
|
* @return {Object} A new object equivalent to the original except along the specified path.
|
|
* @see R.dissocPath
|
|
* @example
|
|
*
|
|
* R.assocPath(['a', 'b', 'c'], 42, {a: {b: {c: 0}}}); //=> {a: {b: {c: 42}}}
|
|
*
|
|
* // Any missing or non-object keys in path will be overridden
|
|
* R.assocPath(['a', 'b', 'c'], 42, {a: 5}); //=> {a: {b: {c: 42}}}
|
|
*/
|
|
|
|
var assocPath =
|
|
/*#__PURE__*/
|
|
_curry3(function assocPath(path, val, obj) {
|
|
if (path.length === 0) {
|
|
return val;
|
|
}
|
|
|
|
var idx = path[0];
|
|
|
|
if (path.length > 1) {
|
|
var nextObj = !isNil(obj) && _has(idx, obj) ? obj[idx] : _isInteger(path[1]) ? [] : {};
|
|
val = assocPath(Array.prototype.slice.call(path, 1), val, nextObj);
|
|
}
|
|
|
|
if (_isInteger(idx) && _isArray(obj)) {
|
|
var arr = [].concat(obj);
|
|
arr[idx] = val;
|
|
return arr;
|
|
} else {
|
|
return assoc(idx, val, obj);
|
|
}
|
|
});
|
|
|
|
export default assocPath; |