crshmk

import { BehaviorSubject } from 'rxjs/BehaviorSubject';

export class ObsService {

  private val$:BehaviorSubject<number> = new BehaviorSubject(42);

  val = this.val$.asObservable();

}

crshmk

/**
 * @param array of unary functions
 * @param array of any
 * @return array of any
 */
 filterMany = (f, d) => 
   f.length < 2 ? d.filter(f[0]) : filterMany(f, d.filter(f.shift()))

crshmk

/**
 * empty array
 * empty string
 * function of zero arity
 * empty object
 * null
 * undefined
 */
var empty = x => Array.isArray(x) || typeof x === 'string' || typeof x === 'function' ? 
  !x.length : null == x || Object.keys(x).length === 0 && x.constructor === Object

crshmk

let methods = {
  upp: function() {
    return Chain(this.x.toUpperCase());
  },
  slice: function(len) {
    return Chain(this.x.slice(len));
  },
  val: function() {
    return this.x
  }

crshmk

/**
 * Test for null when chaining functor wrappers
 * If not null, call chained functions on passed value
 * If null occurs, disregard the function and pass along null
 * When folding value, provide error and success handlers
 */

// functor setup

const Call = x =>

crshmk

/**
* create a pipeline of unary functions
* examples at https://github.com/crshmk/pipe/blob/master/index.js
*/
let pipe = function() {
  var fs = Array.prototype.slice.call(arguments);
  function caller(fs, acc) {
    return fs.length === 0 ? acc
      : caller(fs.slice(1), fs[0](acc));
  };

crshmk

/**
 * @param xs array 
 * @param oneLevel boolean -> pass true to flatten only one level
 */
let flatten = (xs, oneLevel) => 
  oneLevel ? xs.reduce( (acc, xs) => acc.concat(xs), []) :
  xs.reduce( (acc, x) => Array.isArray(x) ? acc.concat(flatten(x)) : acc.concat(x), []);

let nums = [1, [2, [3, 4, [5] ]]]

crshmk

import { m, sm, mountWithPlugin } from './utils.js'


// reduce mounting boilerplate  
import Component from '@/views/Comp.vue'

const wrapper = m(Component)

crshmk

# https://github.com/creationix/nvm

nvm install node --reinstall-packages-from=node

nvm ls

nvm alias default ${newVersion}

nvm uninstall ${oldVersion}

crshmk

function fetcher(url) {
  return fetch(url).then(res => res.json())
}

async function get(url) {
  var result = await fetcher(url);
  return result
}

get('https://jsonplaceholder.typicode.com/users')