Tutorial by Topics: ion

You can add starting variables to the function by adding <parameter> to it's label. These starting variables can be accessed with %n where n is the starting variable's number (%1 for the first, %2 for the second. This %n method works for %1 - %9. For parameter 10 - 255, you will need to use ...

Don't forget to create custom exceptions if you have to Both the resolver and handler must be beens discovered by Spring If you are on Spring 3.2 or higher, you can use @ContrllerAdvice Source

Password must always be hashed. A simple way to secure passwords using NodeJS would be to use bcrypt-nodejs module.

@ViewChild('banner') is the syntax for gaining access to the DOM element that should be transitioning. varname: SuiTransition is the syntax new SuiTransition(ElementRef, Renderer) is the syntax for creating a transition. The ElementRef is obtained with @ViewChild() and the Renderer is obtained t...

I don't think you need get_price(self) specially when you are not making any changes to the price variable. I would remove the method get_price since you can get the same value from the price under the product model. I could be wrong. Just don't see the value of get_price method here.