Introduction to JavaScript Training
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In this JavaScript training course, students learn to use JavaScript effectively to make their web pages more dynamic and functional and to reduce the number of roundtrips to the server.
Goals
- Learn how JavaScript is used.
- Learn JavaScript syntax.
- Learn about objects, methods, and properties.
- Learn to work with JavaScript variables.
- Learn to create your own functions in JavaScript.
- Learn to write flow control logic in JavaScript.
- Learn to listen for and handle events, such as mouse clicks and page loads, with JavaScript.
- Learn to modify HTML on the fly with JavaScript.
- Learn to modify CSS on the fly with JavaScript.
- Learn to handle and prevent JavaScript errors.
Outline
- JavaScript Basics
- The Name "JavaScript"
- What is ECMAScript?
- The HTML DOM
- JavaScript Syntax
- Accessing Elements
- Dot Notation
- Square Bracket Notation
- Where Is JavaScript Code Written?
- JavaScript Objects, Methods and Properties
- Variables, Arrays, and Operators
- JavaScript Variables
- A Loosely-Typed Language
- Google Chrome DevTools
- Variable Naming
- Storing User-Entered Data
- Constants
- Arrays
- Associative Arrays
- Array Properties and Methods
- Playing with Array Methods
- JavaScript Operators
- The Modulus Operator
- The Default Operator
- JavaScript Functions
- Global Objects and Functions
- parseFloat(object)
- parseInt(object)
- isNaN(object)
- User-defined Functions
- Function Syntax
- Passing Values to Functions
- Returning Values from Functions
- Built-In JavaScript Objects
- String
- Math
- Date
- Helper Functions
- Conditionals and Loops
- Conditionals
- if - else if - else Conditions
- Short-circuiting
- Switch / Case
- Ternary Operator
- Truthy and Falsy
- Loops
- while Loop Syntax
- do while Loop Syntax
- for Loop Syntax
- for of Loop Syntax
- for in Loop Syntax
- break and continue
- Array: forEach()
- Event Handlers and Listeners
- On-Event Handlers
- The getElementById() Method
- The addEventListener() Method
- Capturing Key Events
- Benefits of Event Listeners
- Timers
- The HTML Document Object Model
- CSS Selectors
- Type Selectors
- Descendant Selectors
- Child Selectors
- Class Selectors
- ID Selectors
- Attribute Selectors
- The innerHTML Property
- Nodes, NodeLists, and HTMLCollections
- Accessing Element Nodes
- getElementById()
- getElementsByTagName()
- getElementsByClassName()
- querySelectorAll() and querySelector()
- Dot Notation and Square Bracket Notation
- Collections of Elements
- window is Implicit
- Accessing Elements Hierarchically
- Accessing Attributes
- Creating New Nodes
- Focusing on a Field
- Shopping List Application
- Manipulating Tables
- CSS Object Model
- Changing CSS with JavaScript
- The style Property vs getComputedStyle()
- Hiding and Showing Elements
- Checking and Changing Other Style Properties
- Increasing and Decreasing Measurements
- Making changeFontSize() More Flexible
- Custom data Attributes
- Gotcha with fontWeight
- Font Awesome
- classList Property
- Errors and Exceptions
- Runtime Errors
- Completely Unhandled Errors
- Globally Handled Errors
- Structured Error Handling
- Try/Catch
Class Materials
Each student in our Live Online and our Onsite classes receives a comprehensive set of materials, including course notes and all the class examples.
Class Prerequisites
Experience in the following is required for this JavaScript class:
Experience in the following would be useful for this JavaScript class:
- CSS
- Programming experience
Prerequisite Courses
Courses that can help you meet these prerequisites:
Preparing for Class
Follow-on Courses