JavaScript - Serious functions: Anonymous Functions, Scope and Closures(passing anonymous function expressions to other functions)

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 11(Serious functions: Anonymous Functions, Scope and Closures)、EXERCISE(p.482)を解いてみる。

EXERCISE(p.482)

コード(BBEdit, Emacs)

var administer = function (patient, vaccine, time) {
        vaccine(10);
    },
    inject = function (dosage) {
        print(dosage);
    };

administer(1, function (dosage) {
    if (dosage > 0) {
        inject(dosage);
    }
}, 2);