Javascript：服务器端动态变量名
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Javascript: Server sided dynamic variable names
提问by hexacyanide
How would I create dynamic variable names in NodeJS? Some examples say to store in the windowvariable, but I was assuming that is client-side Javascript. Correct me if I'm wrong.
如何在 NodeJS 中创建动态变量名？一些示例说要存储在window变量中，但我假设那是客户端 Javascript。如我错了请纠正我。
回答by Bill
Generally you would do something like:
通常，您会执行以下操作：
var myVariables = {};
var variableName = 'foo';
myVariables[variableName] = 42;
myVariables.foo // = 42
回答by Mahn
In node.js there is the globalcontext, which is the equivalent of the windowcontext in client-side js. Declaring a variable outside of any closure/function/module as you would in plain Javascript will make it reside in the global context, that is, as a property of global.
在 node.js 中有global上下文，它相当于window客户端 js中的上下文。在任何闭包/函数/模块之外声明一个变量，就像在普通 Javascript 中一样，将使其驻留在全局上下文中，即作为global.
I understand from your question that you want something akin to the following:
我从您的问题中了解到您想要类似于以下内容的内容：
var something = 42;
var varname = "something";
console.log(window[varname]);
This in node.js would become:
这在 node.js 中会变成：
var something = 42;
var varname = "something";
console.log(global[varname]);
回答by Raj Kumar
Just don't know what a bad answer gets so many votes. It's quite easy answer but you make it complex.
只是不知道一个糟糕的答案会得到这么多票。这是一个很简单的答案，但你让它变得复杂。
var type = 'article';
this[type+'_count'] = 1000; // in a function we use "this";
alert(article_count);
