我可以将函数的参数转换为其自己的变量名称吗？

Question

So I want to have something like this:

function trace(variable){
    console.log(variables_name.toString()+":"+variable);
}

Is this possible, and if so, how can I invoke/print the variable's name?

This way I can succinctly write trace(a_variable) and have a good idea of what it is without having to write console.log("variable name: "+ variable);

Answer 1

You could pass a map:

function trace(variableMap){
    for (var key in variableMap){
        console.log(key+":"+variableMap[key]);
    }
}

trace ({someVar : someVar});

Since a mod accepted this answer for OP I'll go ahead and add that simply doing

trace({someVar});

Also seems to work. This notation depends on ECMAScript 6 is called the Object Literal Property Value Shorthand .