How can I use string argument input as a variable name in javascript?

How can I use string argument input as a part of variabl开发者_如何学Goe name in a Javascript? I want to do that because it seems to be tedious to define getter and setter for all the fields... while most of the fields have similar names.

For example,

var random = {
    this.input1_field : null,
    this.input2_field : null,
    set: function(name,field){
       this.name_field = field;   
    }
}

where I want name_field to be dynamic based on the input variable 'name'. (ex, name="input1" or name="input2" etc)

this[name + "_field"] = field

You can just pass in a string and use it.

this["input1_field"] === this.input1_field

If your variable has been declared as global, you could do something like this:

var myVar = 5;
var myString = "myVar";

function anyFunc(str){
    return window[str];
}

anyFunc(myString); // Outputs 5

If this variable is local, you could follow the same procedure using the pointer this instead of window.