Download Problem solving and structured programming in BASIC by Elliot B. Koffman, Frank L. Friedman PDF

By Elliot B. Koffman, Frank L. Friedman

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Changing to a “1” will happen. zzzz" 33 CHAPTER 2 ■ TYPE CONVERSION Figure 2–9. Converting to uppercase or lowercase Turkish has dotted and dotless versions of i: • i • Iı The lowercase version of I is ı, not i. Conversely, the uppercase version of i is , not I. 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.

Note that final element, "Mission to Marzipan", is not followed by a comma. Note too that JavaScript numbers flavors from 0 to 9. Although "New York Super Fudge Chunk" is 3 in my heart, it’s 2 to JavaScript: var iceCream = [ "Chocolate Fudge Brownie", "Half Baked", "New York Super Fudge Chunk", "Coffee Heath Bar Crunch", "Cherry Garcia", "Mud Pie", "Milk & Cookies", "Cinnamon Buns", "Chocolate Chip Cookie Dough", "Mission to Marzipan" ]; To query an element in iceCream, put its number in the [] operator.

Although the following two comparisons are equivalent, I’m guessing you were only able to key in the first in Firebug. Figure 2–8 displays both, however. var id = "Dr. charAt(10) === "ü"; // true 32 CHAPTER 2 ■ TYPE CONVERSION Figure 2–8. charCodeAt() is useful for encoding nonkeyboard characters. fromCharCode() and charCodeAt(), you can convert their case to lowercase or uppercase with toLowerCase() or toUpperCase(). For example, fight scenes in Batman comic books would have onomatopoeic words such as pow, bam, and zonk superimposed in uppercase.

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