CarlMungazi

Learning how to read source code has become a hobby of mine lately (and a painful one at that). In the course of my reading I have come across a number of blogs and articles on the subject which have been helpful, so I thought I'd create a gist to keep track of them and also share them easily.

How to read source code

• http://blog.ezyang.com/2012/04/use-the-source-dont-read-it/
• http://wiki.c2.com/?TipsForReadingCode
• http://www.skorks.com/2010/05/why-i-love-reading-other-peoples-code-and-you-should-too/
• https://github.com/aredridel/how-to-read-code/blob/master/how-to-read-code.md
• https://blogs.msdn.microsoft.com/csliu/2009/03/04/how-to-read-source-code/
• https://selftaughtcoders.com/how-to-quickly-and-effectively-read-other-peoples-code/
• http://www.gigamonkeys.com/code-reading/

CarlMungazi

Task: Return the factorial of the provided integer.

Pseudocode:

• Get the integer value (n) as a parameter
  • If the the number is equal to 0
    • return 1
  • return the value of n multiplied by result of n - 1

Actual Code:

CarlMungazi

Task: Write a function which returns true if the given string is a palindrome. Otherwise, return false.

Pseudocode:

• Get the string value as a parameter
  • If the user has entered a string
    • Remove non-alphanumeric characters and make the string lowercase
    • Reverse the string
    • If the string is a palindrome
      • return the boolean value true

CarlMungazi

Task: Reverse the provided string in as many different ways as possible.

Tests: All the solutions should pass the following tests:

• "hello" should return a string.
• "hello" should become "olleh".
• "Howdy" should become "ydwoH".
• "Greetings from Earth" should return "htraE morf sgniteerG"

Code:

1. All you need is one line of code

CarlMungazi

//require modules
var request = require('request');
var cheerio = require('cheerio');
var fs = require('fs');

//prepare to reverse those strings
function reverseString(str) {
	return str
		.split('') //split string into an array
		.reverse() // reverse the array values