How to get value from Object, with default value

Question

I constantly find myself passing config values to functions accessing them like this:

var arg1 = \'test1\';
if(isUndefined(config.args.arg1)){
  arg1 = config.ar         


        

Answer 1

try var options = extend(defaults, userOptions);

This way you get all the userOptions and fall back to defaults when they don't pass any options.

Note use any extend implementation you want.