JavaScript: Extras - a bit more JavaScript
This page may add some extra abilities to your JavaScript knowledge base.
JavaScript code library snippets listed by subject.
Closing a window and navigating the window history. |
|
1. |
Calling a function from a hyperlink to close a window using JavaScript pseudo-protocol 'javascript:'. |
2. |
Calling a function from a hyperlink to go back in window history using JavaScript pseudo-protocol 'javascript:'. |
Protecting your email address. |
|
3. |
Help prevent email trawlers picking up your email address from your website. Place your email address in a JavaScript function. |
Validating user input into a form using regular expressions. |
|
4. |
Regular expression for email address format. Example of use in form validation. Use of 'focus()' with the <body> 'onload' attribute and 'select()' to help user with form completion. |
5. |
Regular expression for UK postcode address format. Example of use in form validation. Use of 'focus()' with the <body> 'onload' attribute and 'select()' to help user with form completion. |
Reading browser, navigation and web page properties. |
|
6. |
|
7. |
Referrer detection: detecting the previous page with 'document.referrer'. |
8. |
Detecting the location of the current page with 'document.location.href'. |
9. |
Capturing the 'get' method attribute query string with 'location.search'. The 'get' query string is the value or the name and value pair(s) after the question mark (?) in a URI. Also known as the get parameters. Example: http://www.justfigures.co.uk/snippet.php?query_string or: http://www.justfigures.co.uk/snippet.php?value=query_string
Unescaping the query string and removing the name '?value=' to leave the parameter value only. |
10. |
Finding the date that the web page was last modified using 'document.lastModified'. |
Further page manipulation. |
|
11. |
Refresh the page from a text hyperlink (anchor). Using JavaScript pseudo-protocol 'javascript:' with 'document.location.reload()' and window.status='Refresh'. |
12. |
Using the 'window.onload' global event handler instead of the <body> 'onload' attribute. Some web editing systems restrict access to the <body> tag for adding the 'onload' event handler. If this is the case use the global event handler 'window.onload' instead. |
| Suggest a code snippet to add to this page. | |
Back to top.
Copyright © 2006-2010 justfigures.co.uk
