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59 lines
1.9 KiB
TypeScript
59 lines
1.9 KiB
TypeScript
// Loaded from https://deno.land/x/ramda@v0.27.2/source/modifyPath.js
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import _curry3 from './internal/_curry3.js';
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import _isArray from './internal/_isArray.js';
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import _isObject from './internal/_isObject.js';
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import _has from './internal/_has.js';
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import _assoc from './internal/_assoc.js';
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import _modify from './internal/_modify.js';
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/**
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* Creates a shallow clone of the passed object by applying an `fn` function
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* to the value at the given path.
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*
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* The function will not be invoked, and the object will not change
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* if its corresponding path does not exist in the object.
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* All non-primitive properties are copied to the new object by reference.
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*
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* @func
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* @memberOf R
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* @category Object
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* @sig [Idx] -> (v -> v) -> {k: v} -> {k: v}
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* @param {Array} path The path to be modified.
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* @param {Function} fn The function to apply to the path.
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* @param {Object} object The object to be transformed.
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* @return {Object} The transformed object.
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* @example
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*
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* const person = {name: 'James', address: { zipCode: '90216' }};
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* R.modifyPath(['address', 'zipCode'], R.reverse, person); //=> {name: 'James', address: { zipCode: '61209' }}
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*
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* // Can handle arrays too
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* const person = {name: 'James', addresses: [{ zipCode: '90216' }]};
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* R.modifyPath(['addresses', 0, 'zipCode'], R.reverse, person); //=> {name: 'James', addresses: [{ zipCode: '61209' }]}
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*/
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var modifyPath = _curry3(function modifyPath(path, fn, object) {
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if ((!_isObject(object) && !_isArray(object)) || path.length === 0) {
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return object;
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}
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var idx = path[0];
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if (!_has(idx, object)) {
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return object;
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}
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if (path.length === 1) {
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return _modify(idx, fn, object);
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}
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var val = modifyPath(Array.prototype.slice.call(path, 1), fn, object[idx]);
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if (val === object[idx]) {
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return object;
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}
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return _assoc(idx, val, object);
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});
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export default modifyPath;
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