Web Browser
Google optimise code by compressing the code.
Browser detection – detect which version of browser user is using to adjust viewing settings
Security issues?
Tested? Wc3.org
Gpl apps ie libreoffice
Elearning per version
Help email/telephone
D1 Unit 20
Explore how web pages using scripts are implemented in different web browsers
Various versions of browsers require specific scripts because the older browsers will need to use the older scripts as they are not designed to run on the later browsers however, all scripts will run on all browsers so there is not a problem with the type of script but more the version. To help try to counter this problem the developer can include varied versions of the scripts in comments so that the webpage will load on both old and new browsers. The comments will provide a way to hide the code so that there is less confusion. The comments will need to be removed though if the user updates their browser to a newer version as they will need to read what is in the comments rather than what isn’t. This is an effective way of providing support for multiple versions of browsers without having to rewrite the code repeatedly as you can just change the comments to change the version of the script to what the browser supports.
Older browsers are more likely to render pop up messages whereas the newer versions will use data validation to check information. The older version forced the user to make a simple choice (usually selecting an option using boxes or radio buttons), this was an effective method to make sure that the information that was input was valid, it may not be true as the user may have selected the wrong box by mistake, but it did limit the chance of a mistake being made as they didn’t have to spell anything. When compared to nowadays where we use validation rules to check that the data that the user has input is this gives the illusion that the user has been given more control over what is input however, they still have to
Browser detection – detect which version of browser user is using to adjust viewing settings
Security issues?
Tested? Wc3.org
Gpl apps ie libreoffice
Elearning per version
Help email/telephone
D1 Unit 20
Explore how web pages using scripts are implemented in different web browsers
Various versions of browsers require specific scripts because the older browsers will need to use the older scripts as they are not designed to run on the later browsers however, all scripts will run on all browsers so there is not a problem with the type of script but more the version. To help try to counter this problem the developer can include varied versions of the scripts in comments so that the webpage will load on both old and new browsers. The comments will provide a way to hide the code so that there is less confusion. The comments will need to be removed though if the user updates their browser to a newer version as they will need to read what is in the comments rather than what isn’t. This is an effective way of providing support for multiple versions of browsers without having to rewrite the code repeatedly as you can just change the comments to change the version of the script to what the browser supports.
Older browsers are more likely to render pop up messages whereas the newer versions will use data validation to check information. The older version forced the user to make a simple choice (usually selecting an option using boxes or radio buttons), this was an effective method to make sure that the information that was input was valid, it may not be true as the user may have selected the wrong box by mistake, but it did limit the chance of a mistake being made as they didn’t have to spell anything. When compared to nowadays where we use validation rules to check that the data that the user has input is this gives the illusion that the user has been given more control over what is input however, they still have to