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JavaScript
JavaScript Guidelines
Some other important things to know when scripting with JavaScript. JavaScript is Case Sensitive A function named "myfunction" is not the same as
JavaScript Special Characters
In JavaScript you can add special characters to a text string by using the backslash sign. Insert Special Characters The backslash ...
JavaScript The onerror Event
Using the onerror event is the old standard solution to catch errors in a web page. Examples The onerror event (an example ...
JavaScript Throw Statement
The throw statement allows you to create an exception. Examples The throw statement How to use the throw statement. ...
JavaScript Try...Catch Statement
The try...catch statement allows you to test a block of code for errors. Examples The try...catch statement How to write a ...
JavaScript Events
Events are actions that can be detected by JavaScript. Events By using JavaScript, we have the ability to create dynamic web pages. Events ...
JavaScript For...In Statement
The for...in statement is used to loop (iterate) through the elements of an array or through the properties of an object. Examples ...
JavaScript Break and Continue
There are two special statements that can be used inside loops: break and continue. Examples Break statement Use the break statement to ...
JavaScript While Loop
Loops in JavaScript are used to execute the same block of code a specified number of times or while a specified condition is true. ...
JavaScript Functions
A function is a reusable code-block that will be executed by an event, or when the function is called. Examples Function How to ...
JavaScript Popup Boxes
In JavaScript we can create three kinds of popup boxes: Alert box, Confirm box, and Prompt box. Examples Alert box Alert box ...
JavaScript Operators
Arithmetic Operators Operator Description Example Result + Addition x=2 y=2 x+y 4 - ...
JavaScript Switch Statement
Conditional statements in JavaScript are used to perform different actions based on different conditions. Examples Switch statement How to write a switch statement. ...
JavaScript If...Else Statements
Conditional statements in JavaScript are used to perform different actions based on different conditions. Examples If statement How to write an if statement. ...
JavaScript Variables
A variable is a "container" for information you want to store. Examples Variable Variables are used to store data. This example will show ...
JavaScript Comments
JavaScript comments can be used to make the code more readable. JavaScript Comments Comments can be added to explain the JavaScript, or to ...
JavaScript Where To ...
JavaScripts in the body section will be executed WHILE the page loads. JavaScripts in the head section will be executed when CALLED. Examples ...
JavaScript How To ...
The HTML <script> tag is used to insert a JavaScript into an HTML page. Examples Write text with Javascript The example ...
Introduction to JavaScript
JavaScript is used in millions of Web pages to improve the design, validate forms, detect browsers, create cookies, and much more. JavaScript is the ...