Function composition a la Scala's Function1.
The project is available on the Node Packaged Modules registry. Add the dependency to your package.json file:
Create some functions:
= a + b= a / b= a / 4= a / 2= a * b= a - b= a * a= -> y + 2 for y in arguments= -> y / 2 for y in arguments
Compose some functions:
squareandThen divideByTwoandThen divideByFour10 # 12.5squarecompose divideByTwocompose divideByFour10 # 1.5625addandThen square105 # 225squarecompose add105 # 225divideandThen square10010 # 100squarecompose divide10010 # 100multiplyandThen square55 # 625squarecompose multiply55 #625subtractandThen square05 # 25squarecompose subtract05 # 25variadicAddTwoandThen variadicDivideByTwo106 # [6, 4]variadicAddTwocompose variadicDivideByTwo106 # [7, 5]
The MIT License (MIT)Copyright (c) 2013 Rocky Madden ()Permission is hereby granted, free of charge, to any person obtaining a copyof this software and associated documentation files (the "Software"), to dealin the Software without restriction, including without limitation the rightsto use, copy, modify, merge, publish, distribute, sublicense, and/or sellcopies of the Software, and to permit persons to whom the Software isfurnished to do so, subject to the following conditions:The above copyright notice and this permission notice shall be included inall copies or substantial portions of the Software.THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS ORIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THEAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHERLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS INTHE SOFTWARE.