JavaScript Is or isNot

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读书笔记，简化代码--不对外公布，只是做笔记使用。

var superman = {
    name: "Superman",
    strength: "Super",
    heroism: true
};

function isSuperStrong (character) {
    return character.strength === "Super";
}

function negate (predicateFunc) {
    return function () {
        return !predicateFunc.apply(this, arguments);
    };
}

var isNotSuperStrong = negate(isSuperStrong); 

JavaScript Is or isNot

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原文地址：http://www.cnblogs.com/shidengyun/p/5047229.html