Answer by SJ00 for How to execute a JavaScript function when I have its name as a string

Since eval() is evil, and new Function() is not the most efficient way to achieve this, here is a quick JS function that returns the function from its name in string.

• Works for namespace'd functions
• Fallbacks to null-function in case of null/undefined string
• Fallbacks to null-function if function not found

    function convertStringtoFunction(functionName){        var nullFunc = function(){}; // Fallback Null-Function        var ret = window; // Top level namespace        // If null/undefined string, then return a Null-Function        if(functionName==null) return nullFunc;        // Convert string to function name        functionName.split('.').forEach(function(key){ ret = ret[key]; });        // If function name is not available, then return a Null-Function else the actual function        return (ret==null ? nullFunc : ret);    }

Usage:

    convertStringtoFunction("level1.midLevel.myFunction")(arg1, arg2, ...);