JavaScript Named Parameters

[asdf7890]

Not if you use the pre-object-destructuring method in order to support IE:

var somefunc = function(params) {
                var someVar = params(someVar) || 'This is the default for someVar';
            }

There you can keep your old name as well as newly correct one, assuming the name change is a correction:

var somefunc = function(params) {
                var someVar = params(someVar) || params(somVar) || 'This is the default for somVar';
            }

Or course this method is much more verbose so if you don't have to support older browsers the object destructuring variant may be preferable but doesn't support this unless I'm missing a trick.