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In programming languages (especially functional programming languages) and type theory, an option type or maybe type is a polymorphic type that represents encapsulation of an optional value; e.g., it is used as the return type of functions which may or may not return a meaningful value when they are applied.
Another example is the Ajax programming technique, where, for example, clicking a hypertext link may cause JavaScript code to retrieve the text for a new price quotation to display in place of the current one within the page, without re-loading the whole page. When the new text arrives back from the server, the JavaScript must identify the ...
Example 3*log(a) String: suggested: class: class: CSS classes to add. String: optional: class-live: class-live: CSS class to add only if gadget is active on the page. String: optional: decimals: decimals: Format to a fixed number of decimal digits [Only applies to type=number or type=plain] Example 2: Number: optional: default: default: Default ...
Next, this value is rounded to nearest Number type value. Boolean If one of the operands is a Boolean, the Boolean operand is converted to 1 if it is true, or to 0 if it is false. Object If an object is compared with a number or string, JavaScript attempts to return the default value for the object.
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 ...
CSS rules can be in separate text files or embedded within the HTML file. The vast majority [4] of pages have JavaScript programs, enabling a wide range of behavior. [3] The newer WebAssembly language can also be used as a supplement. [5] The most sophisticated web pages, known as web apps, combine these elements in a complex manner.
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In HTML, a file-select control is a component of a web form with which a user can select a local file. When the form is submitted (perhaps together with other form data), the file is uploaded to the web server. There, when the file arrives, some action usually takes place, such as saving the file on the web server.