Javascript“this”范围 [英] Javascript "this" scope

问题描述

我正在编写一些JavaScript代码。我对这个关键字有点困惑。如何访问在 dataReceivedHandler 函数记录变量

I am writing some JavaScript code. I am a little confused about this keyword. How do I access logger variable in the dataReceivedHandler function?

MyClass: {
    logger: null,
    init: function() {
        logger = LogFactory.getLogger();
    },
    loadData: function() {
        var dataReceivedHandler = function() {
            // how to access the logger variable here? 
        }

        // more stuff
    }
};

推荐答案

假设 loadData 被调用如下：

MyClass.loadData();

然后：

loadData: function() {
    var self = this;
    var dataReceivedHandler = function() {
        self.logger ...
    }

    // more stuff
}

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