shalvah

import React from 'react';

class Card extends React.Component {
  constructor() {
    super();
    this.state = {
      colors: ['blue-grey', 'red', 'brown' ]
    }
  }
  render() {

shalvah

#!/usr/bin/env node

let faker = require('faker');
let Post = require('../models/post');

// connect to MongoDB
require('mongoose').connect('mongodb://localhost/poster');

// remove all data from the collection first
Post.remove({})

shalvah

let mongoose = require('mongoose');
let Post = mongoose.model('Post', {
  text: String,
  posted_at: Date,
  likes_count: Number,
  author: String
});

module.exports = Post;

shalvah

# run this command as administrator in PowerShell
# this installs the 'Oh-My-Posh' module (https://github.com/pecigonzalo/Oh-My-Posh)
iex ((new-object net.webclient).DownloadString('https://raw.githubusercontent.com/pecigonzalo/Oh-My-Posh/master/install.ps1'))

shalvah

function Token(type, value) {
	this.type = type;
	this.value = value;
}

function isComma(ch) {
	return /,/.test(ch);
}

function isDigit(ch) {

shalvah

function parse(inp){
	var outQueue=[];
	var opStack=[];

	Array.prototype.peek = function() {
		return this.slice(-1)[0];
	};

	var assoc = {
		"^" : "right",

shalvah

Why use this?

Supposing you're building an app (for instance, a voting app), and you want to restrict it to UNN students. Simply ask them to login with their UNN Portal details, and pass them to this API to verify their identity. (Please do not store those credentials 🙏).

How to Use

There's only one endpoint: https://unn-api.herokuapp.com/students/auth

Make a POST request with the following parameters (form-data or application/json content types acceptable)

• username: The student s unnportal.unn.edu.ng username. Example: 2013/123456
• password: The student s unnportal.unn.edu.ng password

shalvah

function debounce(f, t) {
  return function (args) {
    let previousCall = this.lastCall;
    this.lastCall = Date.now();
    if (previousCall && ((this.lastCall - previousCall) <= t)) {
      clearTimeout(this.lastCallTimer);
    }
    this.lastCallTimer = setTimeout(() => f(args), t);
  }
}

shalvah

import { createStore } from 'redux';
 
// our reducer
const tweets = (state = {tweets: []}, action) => {
  switch (action.type) {
    // we'll handle only one action: when new tweets arrive
    case 'SHOW_NEW_TWEETS':
      state.numberOfNewTweets = action.count;
      return state.tweets.concat([action.tweets]);
    default:

shalvah

// without event sourcing
function transferMoneyBetweenAccounts(amount, fromAccount, toAccount) {
  BankAccount.where({ id: fromAccount.id })
    .decrement({ amount });
  BankAccount.where({ id: toAccount.id })
    .increment({ amount });
}

function makeOnlinePayment(account, amount) {
  BankAccount.where({ id: account.id })