Category: Software Development

Coding, JavaScript, Software Development

What I learned today | Functional Javascript: Variables Scope and Closures

Remember the Book: Functional JavaScript   So chapter 3 right?…hm Scopes From my understanding, where a variable lives, while the extent of a scope means how long a variable holds a value. Global Scope This has the longest lifespan when you declare a variable without the var, you are defining a global variable (accessible to […]

Coding, JavaScript, Software Development

What I learned today | Functional Javascript | Chapter 2 | First-Class Functions and Applicative Programming

Hey!! you missed me ? no..okay .. so chapter 2 First Class Functions According to the author, I quote, “the term first class means that soething is just a value. Is one that can go anywhere that any other value can go”. Therefore a first class function is as shown below: var number = function(){return […]

Coding, JavaScript, Software Development

What I learned today | Functional Programming in JavaScript | Chapter 1

In my most recent Coding Blog Post I briefed on what I learned while reading the Book “DOM Enlightment“. The book improved my knowledge of DOM transversing, specific and list selection, style manipulation  etc. This time I have decided on reading the book “Functional JavaScript” by Michael Fogus. I hope to prevent redundancy in my […]

Coding, JavaScript, Software Development

Interesting ways to manipulate the DOM using (vanilla) JavaScript Part 2

Hope you found the part 1 helpful.. Okay, let’s begin… Styling style property to access a specific style property e.g. border-width, use selection.style.borderWidth or for background-color backgroundColor. getProperty, setProperty, removeProperty methods get – takes in only one argument; returns the value of that property e.g. selection.getProperty(“background-color”) set – updates the value of a specific property; […]

Coding, JavaScript, Software Development

Javascript – Scope

Scope the life-time of a variable; Global scope – variables declared without a (var) are in the global scope. Their life time is the longest. They are also easy to mutate at any time, thus you should take extra care when declaring variables in the global scope. Lexical scope – defines the visibility of the […]