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  2. HTML form - Wikipedia

    en.wikipedia.org/wiki/HTML_form

    There are additional attributes to specify required fields, fields that should have keyboard focus when the web page containing the form is loaded, and placeholder text that is displayed within the field but is not user input (such as the 'Search' text displayed in many search input fields before a search term is entered).

  3. HTML attribute - Wikipedia

    en.wikipedia.org/wiki/HTML_attribute

    Where element names the HTML element type, and attribute is the name of the attribute, set to the provided value. The value may be enclosed in single or double quotes, although values consisting of certain characters can be left unquoted in HTML (but not XHTML). [2] [3] Leaving attribute values unquoted is considered unsafe. [4]

  4. List of HTTP header fields - Wikipedia

    en.wikipedia.org/wiki/List_of_HTTP_header_fields

    The Field Names, Header Fields and Repository of Provisional Registrations are maintained by the IANA. Additional field names and permissible values may be defined by each application. Header field names are case-insensitive. [4] This is in contrast to HTTP method names (GET, POST, etc.), which are case-sensitive. [5]

  5. Help:Markup validation - Wikipedia

    en.wikipedia.org/wiki/Help:Markup_validation

    The attribute given above is required for an element that you've used, but you have omitted it. For instance, in most HTML and XHTML document types the "type" attribute is required on the "script" element and the "alt" attribute is required for the "img" element....

  6. HTML element - Wikipedia

    en.wikipedia.org/wiki/HTML_element

    A one-line text input field. The size attribute specifies the default width of the input in character-widths. max-length sets the maximum number of characters the user can enter (which may be greater than size). type="search" A variation of text which produces a search bar. type="password" A variation of text.

  7. Meta element - Wikipedia

    en.wikipedia.org/wiki/Meta_element

    http-equiv is used to emulate an HTTP header, and name to embed metadata. The value of the statement, in either case, is contained in the content attribute, which is the only required attribute unless charset is given. charset is used to indicate the character set of the document, and is available in HTML5.

  8. JavaScript syntax - Wikipedia

    en.wikipedia.org/wiki/JavaScript_syntax

    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 ...

  9. Wikipedia:User scripts/List - Wikipedia

    en.wikipedia.org/wiki/Wikipedia:User_scripts/List

    Adds a todo list link to the head. The link will open a popup that allows you to view, add to, and modify your todo list. The todo list is stored in your user options, so it's private. 63: 24: ToggleSidebar : Adds a link to toggle the sidebar (only testing for Vector). N/A: N/A: Unslashifier