JavaScript Syntax and Operators

By Paul D. Sheriff
Learn various JavaScript structures such as switch, for/in, and for/of. See what math, logical, and comparison operators you can use. Explore how to handle exceptions and work with the 'this' keyword.
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Course info
Rating
(97)
Level
Beginner
Updated
Nov 12, 2019
Duration
1h 41m
Table of contents
Course Overview
Course Overview 2m
All About the Switch Statement
Course Intro, Assumptions, and Related Courses 1m Modules in This Course 2m How the Switch Statement Works 1m Simple Switch Statement Demo 3m Multiple Case Statements and Forget a Break 3m Switch Uses Strict Comparison 1m Block-level Scope Issue with Switch Statements 3m Module Summary 1m
The Difference Between for/in and for/of
Using a for/in Loop 3m Using a for/of loop 3m Break and Continue Statements 3m Labeled Statements 2m Module Summary 1m
Using Math and Comparison Operators
Mathematical Operators 4m Plus Sign with Strings and Numbers 2m Assignment Operators 2m Comparison and Ternary Operators 3m The Effect of 'use strict' 2m Module Summary 1m
Working with Logical Operators and Short-circuit Evaluation
Truthy and Falsy 4m Logical Operators 3m Short Circuiting 4m Operator Precedence 2m
Utilizing JavaScript Exception Handling
Try, Catch, and Finally Blocks 4m Throw a Custom Error Object 3m Detect the Error Type 4m Module Summary 1m
How to Determine JavaScript Variable Data Types
Data Types and Detection Methods 2m The typeof Operator 3m Using the Constructor Property to Determine Type 3m Helper Functions for the Constructor Property 2m The instanceof Operator 2m Module Summary 1m
Understanding 'this' in JavaScript
Introduction to 'this' 2m 'this' in Global and Function Scope 3m 'this' in Event Handlers 1m 'this' in an Object Literal 1m 'this' with call() and apply() Methods 2m 'this' in Constructor Functions 1m Module Summary 1m
Using the Powerful Spread Operator
Copy a String to an Array Using Spread 2m Copy an Array of Primitives Using Spread 1m Copy an Array of Objects 1m Concatenate Two Arrays Together 1m Using Spread to Pass Parameters to a Constructor 1m Pass Parameters to a Function 1m Shallow Copy on Object Literals 1m Module and Course Summary 1m
Description
Course info
Rating
(97)
Level
Beginner
Updated
Nov 12, 2019
Duration
1h 41m
Description

Are you a JavaScript programmer that needs to learn more about the syntax, exception handling, and the wide array of operators JavaScript has to offer? In this course, JavaScript Syntax and Operators, you will expand your knowledge of the JavaScript language. First, you will learn all about the switch statement and the difference between for/in and for/of. Next, you will discover the various math, comparison, and logical operators, in addition to handling exceptions and determining the data type of variables. Finally, you will explore the 'this' keyword and the spread operator. When you are finished with this course, you will have gained the skills and knowledge of JavaScript syntax and operators needed to propel your JavaScript applications to the next level.

About the author
Paul D. Sheriff
About the author

Paul loves teaching and technology, and has been teaching tech and business topics for over 30 years. Paul helps clients develop applications, and instructs them on the best use of technology.

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Section Introduction Transcripts
Section Introduction Transcripts

Course Overview
Hello. My name is Paul Sheriff, and welcome to my course, JavaScript Syntax and Operators. I'm a business IT consultant at PDS Consulting, with over 32 years of experience creating enterprise applications. Are you a developing JavaScript programmer that needs to learn more about the syntax, exception handling, and the wide array of operators JavaScript has to offer? If so, then this course, JavaScript Syntax and Operators, is for you. In this course, you're going to learn many of the constructs of the JavaScript language that will help advance your knowledge of this great language. Some of the major topics you will learn in this course are, the switch statement helps you to simplify your code; for/in and for/of provide specialized looping constructs; JavaScript has a great selection of math, comparison, and logical operators; short-circuit evaluation makes your code more efficient; how to handle exceptions and determine error types; how to investigate a variables data type at runtime; understanding the 'this' keyword and how it changes based on scope; how to use the new spread operator. By the end of this course, you'll have gained a more well-rounded knowledge of the JavaScript language that will allow you to build better JavaScript applications. Before beginning this course, you should be familiar with the basics of the JavaScript language. I hope you'll join me on your journey to learning JavaScript in my course, JavaScript Syntax and Operators, at pluralsight.com.

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