Custom JavaScript Error

custom.error.js

$ ./bin/js
js> function ResourceValidationError() {
    Error.apply(this, arguments);
    if (arguments.length >= 1) {
      this.message = arguments[0];
    }
}
js> ResourceValidationError.prototype = new Error();
Error
js> ResourceValidationError.prototype.constructor = ResourceValidationError;
function ResourceValidationError() {
    Error.apply(this, arguments);
    if (arguments.length >= 1) {
        this.message = arguments[0];
    }
}
js> ResourceValidationError.prototype.name = 'ResourceValidationError';
ResourceValidationError

js> try {
  throw new ResourceValidationError('this.foo is required');
} catch(e) {
  if (e.name == 'ResourceValidationError'){
   e.message; 
  }
}
this.foo is required
js>

resource_validation_error.js

function ResourceValidationError() {
    Error.apply(this, arguments);
    if (arguments.length >= 1) {
      this.message = arguments[0];
    }
}

ResourceValidationError.prototype = new Error();
ResourceValidationError.prototype.constructor = ResourceValidationError;
ResourceValidationError.prototype.name = 'ResourceValidationError';