nickylimjj

// understanding the Event Loop and async nature of nodejs
// resource help from : https://www.codeschool.com/blog/2014/10/30/understanding-node-js/
function submitOrder(orderNumber){
  console.log('Submitted order and cooking: ' + orderNumber)
  cookingFood(function afterEvent(){
    console.log('food is cooked and ready to be delivered')
  })
}

// 5s operation

nickylimjj

// emitter.js
// returns a Function Constructor
function Emitter () {
    this.events = {}
}

// Listener is the code that responds to an event
// analogy: a person taking a cue from an event to execute his task
// @type : type of event. Ie, onClick
// @listener: code to be executed

nickylimjj

// classes.js

'use strict'

var Person = class Person {
    // function Person (args) {}
    constructor (firstname, gender) {
            this.firstname = firstname
            this.gender = gender
    }

nickylimjj

// module.exports

module.exports = function greet () {
    console.log('greet1 [module.exports]')
}

console.log(exports)
console.log(module.exports)

nickylimjj

// server.js

var http = require('http')

http.createServer( function (req, res) {
  res.writeHead(200, { 'Content-Type': 'application/json' })
  var obj = {
    firstname: 'John',
    lastname: 'Lee'
  }

nickylimjj

import csv as csv

filename = '<FILENAME>'

data = []
f = open(filename)
reader = csv.reader(f)

for row in reader:
    data.append(row[5])

nickylimjj

Hack Illinois 2017

First Open Source contribution to Jupyter

About

Project Jupyter was born out of the IPython Project in 2014 as it evolved to support interactive data science and scientific computing across all programming languages.

My Work

Started with a introduction by Katy Huff to figure out the technicalities of submitting a pull request to the actual copy.(arfc/hipython#2).

Subsequently, I tried my hands on the jupyter project. I identified a beginner friendly issue with Jupyter notebook (http://jupyter.org/) which I could start with. It involved reading several issues and the codebase to identify the problem and making the necessary changes.

The issue was a bugfix in nb and server extensions where server extensions were not loaded when installed to different locations. (jupyter/notebook#2063) The solution was solved by modifiying to load with Config Manager so that the merge happens recursively by minrk (https://github.com/jupyter/noteb

nickylimjj

# nric-cert.py
# verifies a Singaporean NRIC
# motivated by video from The Fun Social - How did your NRIC
# number come about?
# date created: June 15, 2017
# author: Nicky Lim

import sys

assert len(sys.argv) == 2, "Usage: python nric-cert.py <NRIC>"

nickylimjj

$ python -m timeit --setup="x = [None]*1000" "x[500]"
10000000 loops, best of 3: 0.0579 usec per loop

$ python -m timeit --setup="x = [None]*1000" "x[0]"
10000000 loops, best of 3: 0.0566 usec per loop

nickylimjj

m = {}

def foo(regex, s_list):
    for idx, token in enumerate(regex):
        # set token and ensure unique values
        if (token not in m and
            s_list[idx] not in m.values()):
            m[token] = s_list[idx]

        # fails if token not added (bcoz substring not unique) or