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Simply printing (echoing) user input to the browser without checking it first is something that should be avoided in secure forms processors: if a user entered the JavaScript code < script > alert (1)</ script > into the firstname field, the browser would execute the script on the form_handler.php page, just as if it had been coded by the ...
HTML attributes are special words used inside the opening tag to control the element's behaviour. It is a piece of markup language used to adjust the behavior or display of an HTML element.HTML attributes are a modifier of a HTML element type. An attribute either modifies the default functionality of an element type or provides functionality to ...
The three-click rule or three click rule is an unofficial web design rule concerning the design of website navigation. It suggests that a user of a website should be able to find any information with no more than three mouse clicks. [1]
W3C began development of its own Arena browser as a test bed for HTML 3 and Cascading Style Sheets, [46] [47] [48] but HTML 3.0 did not succeed for several reasons. The draft was considered very large at 150 pages and the pace of browser development, as well as the number of interested parties, had outstripped the resources of the IETF. [ 14 ]
On 28 October 2014, HTML5 was released as a W3C Recommendation, [32] bringing the specification process to completion. [5] On 1 November 2016, HTML 5.1 was released as a W3C Recommendation. [33] On 14 December 2017, HTML 5.2 was released as a W3C Recommendation. [34]
(This can be partially mitigated if the original code and/or the copy are properly commented; however, even then the problem remains of making the same edits multiple times. Also, because code maintenance often omits updating the comments, [3] comments describing where to find remote pieces of code are notorious for going out-of-date.)
[5] The first prototype for Makey Makey was created in 2010 and tested at a workshop at San Francisco Exploratorium where participants used the product to create a game called "Drum Pants" that used a beach ball as a controller and water buckets as the foot-pads to play the console game, Dance Dance Revolution. [ 6 ]
Hand code is source code which does not have tools that can edit it at a more abstract level. Hand code must, by definition, be edited and maintained entirely by hand. Some code can be edited either using an editor/IDE or by hand, but hand code is differentiated from derived code in that it requires human involvement to create and maintain it over time.