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