Software Development

Kotlin – create static fields and methods

This post demonstrates how to create static class members similar to that of Java. We use Kotlin 1.1 here

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Ruby, Software Development

Ruby – How to create a Class and its Object

This post demonstrates how to create a very simple class and to create objects from that class.

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Software Development

Working with Reference Types in JavaScript

JavaScript has both primitive and reference types. It has three primitive types: string, numeric, and boolean. Internally, these are small and fixed-sized collection of bytes that are easily and predictably manipulated at the low (primitive) levels of the JavaScript interpreter. Example of strings are ‘This is a string’ and “This is another string”. Numeric values – 1, and 3.1416. Boolean values – true or false. On the other hand, reference types are different. They include objects (including JS built-in objects), Arrays, and functions. Essentially, they can have any number of properties or elements with various types (both primitives and references), so they cannot be manipulated as easily as fixed-size primitive v

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Software Development

Type Checking in JavaScript

Okay, JavaScript is a loosely-typed language, which means you do not declare the data type of a variable explicitly. In a basic variable assignment expression, e.g., var i = 4;, the value that assigns to the variable determines the data type of the variable. As you assign different types of data to the same variable, its data type changes as well. Given the nature of JavaScript, finding out what data type a variable represents before using it is very important.

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Software Development

JavaScript Object Creation and Object Methods and Properties

[wp_ad_camp_1] If you’ve read this, it merely declares JavaScript can do OOP. It did not talked about other (more advanced) OOP stuff like access modifiers, encapsulation – behaviors and properties,

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