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var x1 = 0; // A global variable, because it is not in any function let x2 = 0; // Also global, this time because it is not in any block function f {var z = 'foxes', r = 'birds'; // 2 local variables m = 'fish'; // global, because it wasn't declared anywhere before function child {var r = 'monkeys'; // This variable is local and does not affect the "birds" r of the parent function. z ...
These editors produce more logically structured markup than is typical of WYSIWYG editors, while retaining the advantage in ease of use over hand-coding using a text editor. Lyx (interface to Latex/Tex, via which can convert to/from HTML)
Access keys are specified in HTML using the accesskey attribute. The value of an element’s accesskey attribute is the key the user will press (typically in combination with one or more other keys, as defined by the browser) in order to activate or focus that element.
mixed mode: PHP + HTML + JavaScript + CSS, single-mode: PHP, Javascript, CSS, XML; extensible Hundreds of languages Syntax checking HTML, CSS, JavaScript (using JSHint) Some No JavaScript (using JSLint) No No HTML, JavaScript (using JSLint) HTML, CSS, JavaScript, TypeScript Tab support Yes Yes Yes Yes Some Yes Yes Yes Indent, new line keeps level
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 ...
HTML is a structured markup language.There are certain rules on how HTML must be written if it is to conform to W3C standards for the World Wide Web. Following these rules means that web sites are accessible on all types and makes of computer, to able-bodied and people with disabilities, and also on wireless devices like mobile phones and PDAs, with their limited bandwidths and screen sizes.
In HTML and XML, a numeric character reference refers to a character by its Universal Character Set/Unicode code point, and uses the format: &#xhhhh;. or &#nnnn; where the x must be lowercase in XML documents, hhhh is the code point in hexadecimal form, and nnnn is the code point in decimal form.
Logical right shift differs from arithmetic right shift. Thus, many languages have different operators for them. For example, in Java and JavaScript, the logical right shift operator is >>>, but the arithmetic right shift operator is >>. (Java has only one left shift operator (<<), because left shift via logic and arithmetic have the same effect.)