What are Private Methods? – Ruby
A private method in object-oriented programming is a method that can only be called from within the same class or from its…
Articles
Tutorials, solved coding challenges and honest lessons from my journey as a software engineer.
4 Principles of OOP in Ruby
Let's break down these concepts in a straightforward manner: 1. **Encapsulation:** Think of an object (like a class in programming) as a…
Explanation on how the ‘all?’ method works in Ruby
def all?(&block) each { |item| return false unless block.call(item) } true end This is a Ruby method definition for `all?`. Here's…
SOLVED & EXPLAINED | Sum of Left-Most-Nodes – Binary Tree
https://youtu.be/5w9Hyk5JxF0 Challenge: The input for this challenge will provide an array of numbers in the above "breadth-first" format, and use 0's for…
SOLVED & EXPLAINED – Sparse Arrays (JavaScript) | Data Structures & Algorithm
https://youtu.be/LXO7V9na5QU QUESTION: There is a collection of input strings and a collection of query strings. For each query string, determine how many…
SOLVED & EXPLAINED – Time Conversion (JavaScript) | Data Structures & Algorithms
https://youtu.be/dm5OV6wAdsA QUESTION: Given a time in 12-hour AM/PM format, convert it to military (24-hour) time. Note:- 12:00:00AM on a 12-hour clock…
SOLVED & EXPLAINED – Mini Max Sum JavaScript | Data Structures & Algorithm
https://youtu.be/0XwpYv3QrNg QUESTION: Given five positive integers, find the minimum and maximum values that can be calculated by summing exactly four of the…
SOLVED & EXPLAINED – Plus Minus (JavaScript) | Data Structures & Algorithm
https://youtu.be/juQj7FZPx6E QUESTION: Given an array of integers, calculate the ratios of its elements that are positive, negative, and zero. Print the…
SOLVED & EXPLAINED – Multiples of 3 or 5 (JavaScript) | Data Structures & Algorithms
QUESTION: If we list all the natural numbers below 10 that are multiples of 3 or 5, we get 3, 5, 6…
SOLVED & EXPLAINED – Finding duplicates (JavaScript) | Data Structures & Algorithm
QUESTION A duplicate is a number whose value appeared earlier in the list. Given a list of numbers, return an array with…
PALINDROME CHECKER (JavaScript) | Solved & Explained | Data Structures & Algorithm
https://youtu.be/XY6lJut85hc PALINDROME CHECKER (JavaScript) | Solved & Explained | Data Structures & Algorithm
How to Solve REVERSING A STRING JavaScript (SOLVED) | Coding Challenge 1 – Solution For Beginners
Watch a well-detailed video on How to reverse a string in JavaScript (especially for beginners) In this video I will be breaking…