NguyenDa18

/// functions.js ////
const functions = {
  add: (num1, num2) => num1 + num2,
  isNull: () => null,
  checkValue: x => 4,
  createUser: () => {
    const user = { firstName: 'Deku' };
    user['lastName'] = 'Midoriya';
    return user;
  }

NguyenDa18

Free O'Reilly books and convenient script to just download them.

Thanks /u/FallenAege/ and /u/ShPavel/ from this Reddit post

How to use:

1. Take the download.sh file and put it into a directory where you want the files to be saved.
2. cd into the directory and make sure that it has executable permissions (chmod +x download.sh should do it)
3. Run ./download.sh and wee there it goes. Also if you do not want all the files, just simply comment the ones you do not want.

NguyenDa18

import numpy as np
 
# X = (hours sleeping, hours studying), y = score on test
X = np.array(([2, 9], [1, 5], [3, 6]), dtype=float)
y = np.array(([92], [86], [89]), dtype=float)
 
# scale units
X = X/np.amax(X, axis=0) # maximum of X array
y = y/100 # max test score is 100