basic-cursors
basic set of functional cursors:
cursor
: a generic cursor factorypropCursor
: a property cursor factoryinto
: a cursor for upserting a property based on the complete object
these cursors can also be applied to reducers. lightweight: 304 bytes gzip.
Examples
see all examples in this directory. run the examples in your browser.
propCursor
:
// set cursor on foo property Observable.of, .pipe mapfooCursor+v + 1 // increment value of `foo` property .subscribedebug'output:'
API
G extends u?: any any, S extends u?: Parameters<G>, v?: ReturnType<G> any> peek: G, poke?: S: I extends Parameters, T extends any = , O extends ReturnType = I fn?:Parameters<S> O declare I extends Partial<Record<K, any>>, T extends any = , O extends Record<K, any> = I> fn?:O O declare I extends Partial<Record<K, any>>, T extends any = , O extends Record<K, any> = I> fn?:O O declare P extends Partial<Record<K, any>>, K extends string>P declare P extends Partial<Record<K, any>>, V, K extends string>Pick<P, Exclude<keyof P, K>> & Record<K, V> declare
TypeScript
although this library is written in TypeScript, it may also be imported into plain JavaScript code: modern code editors will still benefit from the available type definition, e.g. for helpful code completion.
License
Copyright 2019 Stéphane M. Catala
Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and Limitations under the License.