JavaScript - Interacting with Your Web Page: Getting to know the DOM(getElementById, innerHTML)

Head First JavaScript Programming
( O'Reilly Media)
Eric T. Freeman (著), Elisabeth Robson (著)

開発環境

• OS X Mavericks - Apple(OS)
• Safari, Firefox + Firebug, Google Chrome(Webプラウザ、プラグイン)
• BBEdit - Bare Bones Software, Inc. (GUI) , Emacs (CUI) (Text Editor)
• JavaScript (プログラミング言語)

Head First JavaScript Programming (Eric T. Freeman (著)、 Elisabeth Robson (著)、 O'Reilly Media )のChapter 6(Interacting with Your Web Page: Getting to know the DOM)、SHARPEN YOUR PENCIL(p.246)を解いてみる。

SHARPEN YOUR PENCIL(p.246)

you can turn back pages but not time

確認。

The

time has come

braggin'

if you can

back

it up!

I'm not funny but I do laugh a lot

• Please
• turn
• the
• pages
• one at a time!

コード(BBEdit, Emacs)

var e7 = document.getElementById("e7"),
    e8 = document.getElementById("e8"),
    e16 = document.getElementById("e16"),
    e9 = document.getElementById("e9"),
    e18 = document.getElementById("e18"),
    e13 = document.getElementById("e13"),
    e12 = document.getElementById("e12"),
    e2 = document.getElementById("e2"),
    elements = [e7, e8, e16, e9, e18, e13, e12, e2],
    i,
    max,
    result = '';

for (i = 0, max = elements.length; i < max; i += 1) {
    result += elements[i].innerHTML;
}
print(result);