不要在循环中创建函数 [英] Don't make functions within a loop

问题描述

在这种情况下解决jslint错误的正确方法是什么？我正在为使用它的对象添加一个getter函数。我不知道怎么做而不在循环内创建函数。

What would be the correct way to solve the jslint error in this case? I'm adding a getter function to an object which uses this. I don't know how to do this without creating the function inside the loop.

for (var i = 0; i<processorList.length; ++i) {
   result[i] = {
       processor_: timestampsToDateTime(processorList[i]),
       name_: processorList[i].processorName,
       getLabel: function() { // TODO solve function in loop.
            return this.name_;
       }
   };
}

推荐答案

将函数移出循环：

function dummy() {
    return this.name_;
}
// Or: var dummy = function() {return this.name;};
for (var i = 0; i<processorList.length; ++i) {
   result[i] = {
       processor_: timestampsToDateTime(processorList[i]),
       name_: processorList[i].processorName,
       getLabel: dummy
   };
}

...或者只是使用 loopfunc 选项位于文件顶部：

... Or just ignore the message by using the loopfunc option at the top of the file:

/*jshint loopfunc:true */

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