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The binary logical operators returned a Boolean value in early versions of JavaScript, but now they return one of the operands instead. The left–operand is returned, if it can be evaluated as : false, in the case of conjunction: (a && b), or true, in the case of disjunction: (a || b); otherwise the right–operand is returned. Automatic type ...
W3Schools is a freemium educational website for learning coding online. [1] [2] Initially released in 1998, it derives its name from the World Wide Web but is not affiliated with the W3 Consortium. [3] [4] [unreliable source] W3Schools offers courses covering many aspects of web development. [5] W3Schools also publishes free HTML templates.
Markup validation is an important step towards ensuring the technical quality of web pages. However, it is not a complete measure of web standards conformance. [1] Though W3C validation is important for browser compatibility and site usability, it has not been confirmed what effect it has on search engine optimization.
January 14, 1997 HTML 3.2 [16] was published as a W3C Recommendation.It was the first version developed and standardized exclusively by the W3C, as the IETF had closed its HTML Working Group on September 12, 1996.
In a SQL database query, a correlated subquery (also known as a synchronized subquery) is a subquery (a query nested inside another query) that uses values from the outer query. This can have major impact on performance because the correlated subquery might get recomputed every time for each row of the outer query is processed.
Web SQL Database is a deprecated web browser API specification for storing data in databases that can be queried using SQL variant. [1] [2] The technology was only ever implemented in Blink-based browsers like Google Chrome and the new Microsoft Edge, and WebKit-based browsers like Safari.
Pull coding or client pull is a style of network communication, where the initial request for data originates from the client, and then is responded to by the server. The reverse is known as push technology , where the server pushes data to clients.
First edition based on JavaScript 1.1 as implemented in Netscape Navigator 3.0. [1] Guy L. Steele Jr. 2 June 1998 Editorial changes to keep the specification fully aligned with ISO/IEC 16262:1998. Mike Cowlishaw: 3 December 1999 Based on JavaScript 1.2 as implemented in Netscape Navigator 4.0. [2]