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JavaScript Objects HTML DOM ObjectsJavaScript Examples
Basic JavaScript Examples
Write to the
Document with JavaScript
Change HTML
elements with JavaScript
An external JavaScript
JavaScript Statements, Comments and Blocks
JavaScript statements.
JavaScript blocks.
Single line comments.
Multiple lines comments.
Single line comment to prevent execution.
Multiple lines comment to prevent execution.
JavaScript Variables
Declare a variable, assign a value to it, and display it
JavaScript Conditional If ... Else
If statement
If...else statement
Random link
Switch statement
JavaScript Popup Boxes
Alert box
Alert box with line breaks
Confirm box
Prompt box
JavaScript Functions
Call a function
Function with an argument
Function with an argument 2
Function that returns a value
Function with arguments, that returns a value
JavaScript Loops
For loop
Looping through HTML headers
While loop
Do While loop
Break a loop
Break and continue a loop
Use a for...in statement to loop through the elements of an
object
JavaScript Events
Acting to the onclick event
Acting to the
onmouseover event
JavaScript Error Handling
The try...catch statement
The try...catch statement with a confirm box
The onerror event
Advanced JavaScript Examples
Create a welcome cookie
Simple timing
Another simple timing
Timing event in an infinite loop
Timing event in an infinite loop - with a Stop button
A clock created with a timing event
Create a direct instance of an object
Create an object constructor
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