• Post category:StudyBullet-16
  • Reading time:6 mins read


Mastering Object-Oriented JavaScript for Efficient and Error-Free Coding

What you will learn

Students will start by understanding the basics of creating object literals and exploring their properties, establishing a strong foundation.

With interview-style tasks and coding practice, students will understand the theory and gain hands-on experience, preparing them for real-world scenarios

The use of ‘for-in’ loops is introduced, empowering students to efficiently extract properties and values from objects.

The tutorial emphasizes the universal application of these skills, making them relevant in any modern programming language.

Students will gain insights into function objects, arrow functions, and object chaining, enhancing their understanding of these essential concepts.

Practical aspects include preventing errors with optional chaining and uncovering hidden properties within objects.

Students will explore object symbols on a global scale, enhancing their comprehension of system symbols.

Students will not only have confidence in dealing with JavaScript objects but will also possess a versatile skill set applicable across different languages

Description

In this comprehensive course on object-oriented programming (OOP) in modern JavaScript, you’ll explore fundamental concepts and advanced techniques to enhance your mastery of JavaScript’s OOP capabilities.

We begin by examining the basics, including object literals, square bracket usage, and property shorthand, alongside restrictions on property names and object iteration using `for…in` loops.

Advancing further, we delve into complex topics like object references, duplication, and reference-based comparison. You’ll learn to modify constant objects, clone objects with nested structures, and grasp methods within objects, with a focus on the `this` keyword’s significance.


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Next, we introduce constructor functions and the `new` operator, clarifying constructor return values and demonstrating how to utilize optional chaining for error prevention and code optimization.

You’ll also develop a profound understanding of symbol types, their global applications, and system symbol utilization. Additionally, we’ll address object-to-primitive conversion strategies, including hints, and examine `toString` and `valueOf` methods for effective conversion management.

By course end, you’ll possess a comprehensive grasp of modern JavaScript’s OOP concepts, enabling you to write concise, efficient code and confidently tackle intricate programming challenges. This knowledge will not only elevate your JavaScript skills but also enhance your ability to design robust and scalable applications, making you a more versatile and valuable developer in today’s competitive landscape.

English
language

Content

Introduction

Introduction

JavaScript Objects

JavaScript Objects Unleashed
Literals and Properties
Square Brackets usage
Shorthand for Property Values
Restrictions on Property Names
Checking Property Existence with the ‘in’ Operator
Iterating with the ‘for..in’ Loop
Create and assign values to an Object
Verify if an Object is Empty
Calculate the Sum of Object Properties
Increase numeric property values by a factor of 2

Object References and Duplication

Object References and Duplication
Reference-Based Comparison
Modifications to Const Objects
Object Cloning and Merging with Object.assign
Cloning with Nested Structures

Methods in Objects

Methods in Objects and the “this” Keyword
Understanding “this” in Methods
β€œthis” is not locked
Arrow functions don’t use “this”
Craft a Calculator App
Chaining in JavaScript

New Operator

Constructor Functions and the “new” Operator
Testing Constructor Mode with new.target
Values Returned by Constructors
Methods in Constructor

Optional Chaining System

Using ‘?’ for Optional Chaining
Avoiding Errors with Optional Chaining
Swift Exit with Short-Circuiting
Other Uses: ?.() and ?.[]

Understand Symbol Type

Understand Symbol Type
Understanding Hidden Properties
Symbols on a Global Scale
Understanding System Symbols

Object Transformation into Primitives

Object Transformation into Primitives
What are “Hints”
Symbol.toPrimitive Method
toString/valueOf Methods