Download Advanced JavaScript, Third Edition by Chuck Easttom PDF

By Chuck Easttom

Complicated JavaScript 3rd variation offers an in-depth exam of crucial beneficial properties of JavaScript. starting with an outline of JavaScript, the ebook fast strikes into extra complicated beneficial properties wanted for complicated but powerful JavaScript scripts, equivalent to gadgets, arrays, and date and time features. also, a variety of gains of JavaScript which are crucial for contemporary web content are mentioned, together with manipulating the prestige bar, developing dynamic calendars, and dealing with kinds, pictures, and the record item version. quite a few examples illustrate find out how to enforce a variety of options. issues lined: how you can improve your web content with LED symptoms, banners, and photographs enforcing cookies to shop and retrieve info The constitution of the rfile item version and the way it may be used to view, entry, and alter an HTML record safety features to guard deepest details whereas utilizing the web

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Extra info for Advanced JavaScript, Third Edition

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Take a look at the following expressions, numbered by line. /* /* /* /* /* /* 1 2 3 4 5 6 */ */ */ */ */ */ 8 + "8" 8 + "8" 8 + 8 + 8 + 8 "8" + "8" 8 + "8" "8" + 8 // // // // // // 16 "88" "88" "88" "168" "888" These expressions all use the string concatenation operator, which is also the numeric plus operator. ) The first expression simply adds up two numbers using a numeric format. It uses the standard plus operator and evaluates to the sum of its operands. The second expression is quite different.

Games You can create many interesting games with JavaScript. During our JavaScript programming experience we have written tic-tac-toe games, a mastermind game, a Tetris game, and many others. There are basically two types of games you can create via JavaScript: n Static games n Dynamic games Static games are usually logical ones, and thus do not require much action or immediate responses. For example, you can play tic-tac-toe without any live action, because even reloading the entire page for each move does not interfere with the game itself (although it might be very boring).

The following identifiers are legal: loopCounter _AccountNumber _123456789_ customer_name OfficeNumber6 but the following ones are illegal: with ^fastTimer 911phoneNumber 04-825-6408 ***important*** 10_guesses // // // // // // // reserved word first character is illegal cannot start with a digit first character is illegal "-" is an illegal character * is not a legal character first character cannot be a digit Keywords are words that have special meanings in a programming language. ). The list of keywords is the basic vocabulary of the language.

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