Nuclear Planning Manual


    0.2.0 • Public • Published
    # pattern

    pattern is a way to do pattern matching in javascript that helps you do asynchronous iterations

    // check `samples/nodetuts.js` for working code
    insert_all([], function () { console.log('done'); });
    insert_all(_, function (l) {
      insert_element(l.shift(), function (elem) {
        console.log('‣ ', elem);
    insert_all([1, 2, 3, 4, 5, 6, 7, 8, 9, 10]);

    the first pattern in pattern sets the arity of the function to execute

    // first call sets arity #1
    // when this condition is met it logs the message done
    insert_all([], function () { console.log('done'); });

    then we normally register the iteration pattern:

    // var _; was set in the top, value is undefined
    insert_all(_, function (l) {

    if you then call insert_all where the argument count matches arity, pattern knows its time to execute

    // one argument, arity #1
    // run forest, run
    insert_all([1, 2, 3, 4, 5, 6, 7, 8, 9, 10]);

    this is the code you would normally write to do the same thing in javascript

    # installation ## node.js
    1. install npm
    2. npm install p
    3. var p = require('p');
    # samples

    there are samples in the samples directory. check them out

    # disclaimer

    if you are not familiar with haskell and you love your javascript object oriented code you better look away right now. this pretty much breaks everything you love and care about in javascript

    pattern was made so i could learn some more javascript. it's slow, and certainly not web scale

    this software does not obey laws, common best practices, or even common sense

    it does everything that is wrong in javascript; or at least attempts to (suggestions are welcome)

    i'll probably still use it anyway

    # roadmap

    pointfree style (note i'm just kidding)

    # contribute

    everyone is welcome to contribute. patches, bug-fixes, new features

    1. create an issue so the community can comment on your idea
    2. fork pattern
    3. create a new branch git checkout -b feature_name
    4. create tests for the changes you made
    5. make sure you pass both existing and newly inserted tests
    6. commit your changes
    7. push to your branch git push origin feature_name
    8. create an pull request
    # meta

    (oO)--',- in caos

    # license

    copyright 2012 nuno job <> (oO)--',--

    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

    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




    npm i p

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