Throw Exception containing variable name

 

This question already has an answer here:

  • How to execute a JavaScript function when I have its name as a string 29 answers

    • You are trying to convert a string to a function and create a new instance of a variable, which won't work.

    There are ways to get a function corresponding to a string: How to turn a String into a javascript function call?

    But a better way to go about this would be to simply do the first if statement, or convert it to a switch.

    For a global variable: 

    // Set up in global scope, not in the scope of something else.
var NoXException = function () { ... }

var variable = "No" + getMissing() + "Exception";
throw new window[variable]()

    For a variable that's stored within another's scope: 

    var exceptions = {}
exceptions.NoXException = function () { ... }

var variable = "No" + getMissing() + "Exception";
throw new exceptions[variable]()
// Alternatively
throw new window['exceptions'][variable]()
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