nobitagit

General programming

Null References: The Billion Dollar Mistake - https://www.infoq.com/presentations/Null-References-The-Billion-Dollar-Mistake-Tony-Hoare

Functional

Let’s Code Real World App Using Purely Functional Techniques (in Scala) - https://www.youtube.com/watch?v=m40YOZr1nxQ&list=WL&t=0s&index=2

nobitagit

{
 "name": "Single JS file",
 "type": "node",
 "request": "launch",
 "program": "${file}",
 "stopOnEntry": false,
 "args": [],
 "cwd": "${workspaceRoot}",
 "preLaunchTask": null,
 "runtimeExecutable": null,

nobitagit

const len = num => {
  const isNum = !isNaN(parseFloat(num)) && isFinite(num);
  if (!isNum) {
    return new Error('not a number');
  }
  const str = num.toString().replace('.', '');

  return str.length;
}

nobitagit

function translateError(msg) {
  var newErr = new Error(msg); // placed here to get correct stack
  return e => { 
    newErr.originalError = e;
    throw newErr;
  }
}

async function asyncTask() {  
    const user = await UserModel.findById(1).catch(translateError('No user found'))

nobitagit

maxScore = 7
scores = {
  'q': 5,
  'w': 4,
  'e': 3,
  'r': 2,
  't': 3,
  'y': 3,
  'u': 2,
  'i': 3,

nobitagit

# for a given sentence calcultate the characters score
def score_sentence(sentence):
    scored = list(map(to_score, sentence))
    aggregate = reduce(lambda x, y: x + y, scored, 0)
    return aggregate

nobitagit

def to_score(ch):
  if ch in scores:
    if ch.isupper():
      return scores[ch] + 2
    else:
      return scores[ch]
  return maxScore

nobitagit

scores = {
  'q': 5,
  'w': 4,
  'e': 3,
  'r': 2,
  't': 3,
  'y': 3,
  'u': 2,
  'i': 3,
  'o': 4,

nobitagit

# only diff by etension (or whatever pattern)
git diff -- '*.js'

# show file from another branch without checkout
git show master:./src/path/to/my/file.js

nobitagit

import re
from functools import reduce

my_str = "one two three"
words = re.split(r'(\s+)', my_str)

# Scoring logic 
# To each finger we associate a score:
# thumbs: 1
# index: 1