Read e-book online JavaScript for absolute beginners : Description based on PDF

By Terry McNavage

ISBN-10: 143027218X

ISBN-13: 9781430272182

ISBN-10: 1430272198

ISBN-13: 9781430272199

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Read Online or Download JavaScript for absolute beginners : Description based on print version record. - Includes index PDF

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OK, click Clear in both Firebug panels. Then type the keyword var followed by the identifier iceCream and a semicolon. Doing so declares a variable named iceCream to JavaScript. However, iceCream contains undefined, a literal conveying no value. Download from Wow! com> var iceCream; Let’s put the string literal "Chocolate Fudge Brownie" in iceCream with the = operator: var iceCream; iceCream = "Chocolate Fudge Brownie"; To query the value contained by a variable, type its identifier. Type iceCream, and click Run.

So for Turkish, toLowerCase() and toLowerCase() would mess up the i pairings. toLocaleUpperCase() // "" ■ Note toLocaleLowerCase() and toLocaleUpperCase() convert case based on your OS settings. You’d have to change those settings to Turkish for the previous sample to work. Or just take my word for it! 34 CHAPTER 2 ■ TYPE CONVERSION Locating a Substring Sometimes you will want to search a string for a smaller string, referred to as a substring. For example, "man" is a substring of "Batman" and "Catwoman".

So, we could locate the first and second occurrences of "Man" like so in Firebug. indexOf("Man") + 1, which returns 23, prior to passing the parameter to indexOf(). Verify your work with Figure 2–11: Download from Wow! indexOf("Man") + 1); // 49 Figure 2–11. Locating the second occurence of "Man" indexOf() has a partner in crime named lastIndexOf() that searches upstream, from the end of a string to the beginning. lastIndexOf("Man"); // 49 Clipping a Substring Sometimes you may want to cut a slice from a string.

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JavaScript for absolute beginners : Description based on print version record. - Includes index by Terry McNavage


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