Last Update: 26-05-2016
The ++ and -- operators were deprecated in Swift 2.2. From Xcode 7.3.1 you will get a warning message if you incorporate these operators in your code. The operators will work until Swift 3.0 is introduced, meanwhile Xcode will suggest you to use the += and -= operators instead. O...
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Last Update: 14-06-2016
The <iframe> element loads another document inside the current document. The element includes an opening and a closing tag (<iframe> and </iframe>) and several attributes for configuration.   src - This attribute defines the URL of the document to be loaded insi...
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Last Update: 14-06-2016
The <fieldset> and <legend> elements are used to group controls together. The <fieldset> element groups the form elements and the <legend> element provides the label (caption) for the group. The <fieldset> element includes the following attributes for configur...
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Last Update: 14-06-2016
The <progress> element creates a progress bar to show the progress of a task. This element can be used alone but it is frequently included in web forms to represent the progress of a task requested by the user. The element includes an opening and a closing tag (<progress> and &...
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Last Update: 01-06-2016
As well as the <head> element, the <body> element is also in charge of one of the main sections of the document, in this case the body. The body is where all the visible and interactive content of a page is specified. The <body> element is composed by opening and closing tags (<...
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Last Update: 26-05-2016
The string-type selectors were deprecated in Swift 2.2. From Xcode 7.3.1 you will get a warning message if you define a selector using just a string (e.g., addTarget(self, action: "showCounter:", forControlEvents: .TouchUpInside)). These selectors will work until Swift 3.0 is int...
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Last Update: 14-06-2016
HTML (HyperText Markup Language) is a markup language composed by a set of tags that organize and declare a purpose for the content of the document. These tags are keywords surrounded by angle brackets (e.g., <html>). They may include attributes (e.g., <html lang="en">) and be accom...
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Last Update: 14-06-2016
The <meter> element is used to represent a value within a range. This element can be used alone but it is frequently included in web forms to represent values inserted by the user or produced by the form. The element includes an opening and a closing tag (<meter> and </meter>)...
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Last Update: 06-06-2016
The <wbr> element suggests a place where to break a line of text. It is used to tell the browser where to break a line when there is not enough space in the container to show it and there are no clear places to do it (the line is a continues string of characters with no spaces in between)...
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Last Update: 14-06-2016
The <button> element creates a generic button. The element includes an opening and a closing tag (<button> and </button>) and several attributes for configuration. The following are the most frequently used.   name - This attribute assigns a name to the element that can b...
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