Pry is a REPL (Read, Evaluate, Print, Loop) that pauses your code wherever inserted and allows you to test/debug. When your code gets to the ‘pry’ it will freeze and your terminal will turn into a REPL right in the middle of your program. Using Pry T...
Hashes are basically like JavaScript objects. They are composed of key/value pairs and each key points to a specific value. For example; a_hash = { name: "John", age: "20" } a_hash[:age] # => "20" To access data from the hash above, bracket notation ...
In Ruby, to access elements, bracket notation is used with the index of the element. fruits = ["banana", "mango", "pineapple"] fruits[0] # => "banana" fruits[1] # => "mango" Bracket notation can be used to update the elements as well. For example; f...
Classes are like the blueprint from which individual objects are created. Class variables Class methods Private Methods Class Variables Class variables are used to store values related to a class in general rather than a particular instance. Cla...
ARRAY ITERATOR METHODS. WHAT IS ARRAY ITERATOR?.... An array is a single variable that is used to store different elements. Array iteration-This is used to traverse an array and dynamically access elements of that array. it operates on every array...
Pillars of web programming Manipulating the DOM Creating events Communicating with the server Process of communicating with server The click event kicks off a sequence of actions to notify the server that the post has received a like. The server up...
What is an APT attack? This is where an unauthorized hacker gains access and maintains a presence in a network to get access to critical files A hacker can stay in a network for 100 days without being detected Once they get to access the files are lo...