Polytype | Dynamic multiple inheritance for JavaScript and TypeScript Without mixins | Reflection library
kandi X-RAY | Polytype Summary
kandi X-RAY | Polytype Summary
Polytype is a library that adds support for dynamic multiple inheritance to JavaScript and TypeScript with a simple syntax. “Dynamic” means that changes to base classes at runtime are reflected immediately in all derived classes just as programmers would expect when working with single prototype inheritance. As of today, Polytype runs in current versions of all major browsers and in Node.js(*).
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Top functions reviewed by kandi - BETA
- Creates a super - argument map from the given arguments object to a given type .
- Bundles a migrationup plugin
- Installs all ancestor properties of an object .
- Creates a new constructor proxy .
- Adds output to the bundle
- Creates a super new instance .
- Creates a reference
- helper function to read a file
- Get all the common specifications
- Get the template .
Polytype Key Features
Polytype Examples and Code Snippets
Community Discussions
Trending Discussions on Polytype
QUESTION
I am new to C++ and I am currently playing with inheritance. I am creating a base Polygon class that is inherited by Rectangle and Triangle classes respectively. From there I want to print out the area as defined in calcArea
. However, the output of my derived class instances seem to be null.
From what I understand the Polygon:(name, width, height)
can help to initialize variables that already exist in the base class. Thanks for all the help!
Here's my code:
...ANSWER
Answered 2021-Nov-06 at 07:01The main problem is that you have variables in the sub classes shadowing the names in the base class - so you assign values to the variables in the base class, but you later print the values of the default initialized variables in the sub classes.
You actually mostly need to remove code.
I would rethink the name of the base class though. Polygon
is not a good name for a class with only width and height. I'll leave that up to you.
I've replaced all endl
with \n
. They do the same thing, but endl
flushes the output, which is usually not needed - but it is usually also expensive.
Example:
QUESTION
I have a flask-sqlalchemy
polymorphic table structure like so
ANSWER
Answered 2021-Mar-15 at 11:42There's an old open issue about it.
In that issue, it is suggested that using an event listener can work, for example:
QUESTION
I'm having trouble getting the index of a value where a specific value was found. The problem is, names array could have 2 indexes. How can I find the array of the index where the value was found?
Edit: Updated array
...ANSWER
Answered 2021-Jan-10 at 20:14There's an array method for that:
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