Understanding Language: Machine Language vs. Natural Language What is a language used for? A language is a means (and a tool) for expressing and recording thoughts. Do all languages require speaking or writing? No, some languages, like body language, do not require speaking or writing. What language do you use each day? Your mother tongue, which you use to manifest…
Computer Basics What makes a computer usable? A program makes a computer usable. What is a computer without a program compared to? It is compared to an object, like a piano without a player. What kind of tasks can computers perform? Computers can perform very complex tasks. What is the nature of a computer? A computer can only execute extremely…
Transforming High-Level Programs into Machine Language In the world of programming, transforming a high-level programming language into machine language is a crucial step. This transformation is necessary to make the code executable by a computer. There are two primary methods for this transformation: compilation and interpretation. Each method has its unique characteristics and use cases. Let’s explore both in detail….
Machine language vs. high-level language Q: What is the instruction list? A: The instruction list is the alphabet of machine language. Q: Why is machine language called the computer’s mother tongue? A: Because it is the simplest and most primary set of symbols used to give commands to a computer. Q: Why can’t humans directly use machine language? A: Machine…
Master the DOMContentLoaded Event in JavaScript The DOMContentLoaded event is a JavaScript event that fires when the document has been loaded and parsed, but befor any images or stylesheets have finished loading. This means that you can use the DOMContentLoaded event to perform actions that depend on the DOM being loaded, such as adding event Listeners to elements or dynamically…
Master the classList Property in JavaScript What is classList in JavaScript? The clasList property in JavaScript is a read-only property of the element interface that returns live DOMTokenList object representing the class attributes of the element The clasList property is a convenient alternative to accessing an element’s list of classes as a space delimited string via the className property. The…
JavaScript CurrentTarget Property The currentTarget property in javascript is read-only property of the Event interface that identifies the current target for the Event, as the event traverses the DOM. It always reffers to the element to which the event handler has been attached, as opposed to the target property, which identifies the element on which the event occurred and which…
javaScript addEventListener( ) The addEventListener( ) method in javaScript is used to attach an event handler to an element. An event handler is a function that is called when a certain event occures, such as mouseclick, or keypress. The addEventListener( ) method takes three arguments: The first argument is the name of the event. This is the name of the…
JavaScript forEach() The forEach() method in javascript is an iterative method that calls a provided callback function once for each array element in ascending index order. The callback function is passed three arguments: 1 The current element. 2 the index of the current element3the array itself The syntax for the forEach() method is: array.forEach(callbackfn); where array is the array to…
JavaScript querySelectorAll() The querySelectorAll() method in JavaScript is used to select all elements that match a CSS selector. The syntax for the querySelectorAll() method is: document.querySelectorAll(selector); where selector is a CSS selector that specifies the elements to select. For example, the following code will select all button elements with class = “btn”: const elements = document.querySelectorAll(‘.btn’); The querySelectorAll() method returns…