Programming and Web Design

Comparison and Logical operators are used to test for true or false. Comparison Operators  Comparison operators are used in logical statements to determine equality or difference between variables or values. Given that x=5, the table below explains the comparison operators: Operator Description Comparing Returns == is equal to x==8 false x==5 true === is exactly equal to (value and type) x==="5" false x===5 true != is not equal x!=8 true !== is not equal (neither value nor type) x!=="5" true x!==5 false > is greater than x>8 false < is less than x<8 true >= is greater than or equal to x>=8 false <= is less than or equal to x<=8 true Logical Operators Logical operators are used to determine the logic between variables or values. Given that x=6 and y=3 , the table below explains the logical operators: Operator Description Example ...

A Document Type Declaration, or DOCTYPE, is an instruction that associates a particular SGML or XML document (for example, a webpage) with a Document Type Definition (DTD). Syntax The general syntax for a document type declaration is: <!DOCTYPE root-element PUBLIC "FPI" ["URI"] [ <!-- internal subset declarations --> ]>

Forms aren't the easiest of things to use for people with disabilities. Navigating around a page with written content is one thing, hopping between form fields and inputting information is another. Because of this, it is a good idea to add a number of elements to the form. Labels Each form field should have its own label. The label tag sorts this out, with a for attribute that associates it to a form element:

Okay till now, you must be confident with creating tables and its tags. You have already done or used tags like table, tr, td, th and even rowspan and colspan. So now I am moving on to the advance tutorial of the table tags. Those are as below: colgroup and col summary and caption headers, footers and scrolling table

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Quotations blockquote, q and cite are used for quotations. blockquote is block-line and used for large citations, whereas q is in-line and used for smaller phrases. cite is also in-line and preferable to q for its semantic nature and possible future deprecation of q. Again, the title attribute can be used to show where the citation has come from.

abbr and acronym are used for abbreviations and acronyms respectively. An abbreviation is a shortened form of a phrase. Very general. An acronym however is an abbreviation made up of the initial letters (or parts of words) of the phrase it is representing. So CSS is a valid acronym, whereas HTML and XHTML are not (if 'Hypertext markup language' was an acronym, it would be 'HML'. Similarly, XHTML would be EHML).