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Bookmark or Share- uml - What's is the difference between include and extend in use case ...Extend is used when a use case adds steps to another first-class use case. For example, imagine "Withdraw Cash" is a use case of an Automated Teller Machine (ATM). "Assess Fee" would extend Withdraw Cash and describe the conditional "extension point" that is instantiated when the ATM user doesn't bank at the ATM's owning institution.
- What is the difference between include and extend in Ruby?Just getting my head around Ruby metaprogramming. The mixin/modules always manage to confuse me. include: mixes in specified module methods as instance methods in the target class. extend: mixes in specified module methods as class methods in the target class. So is the major difference just this or is a bigger dragon lurking? e.g.
- Append vs Extend - Stack Overflowextend "extends" the list (in place) by as many items as the object passed (as argument) contains. This may be slightly confusing for str objects. If you pass a string as argument: append will add a single string item at the end but extend will add as many "single" 'str' items as the length of that string.
- Python "extend" for a dictionary - Stack OverflowOf course, you could simple note that a.extend(b) is nearly the same as b.update(a); a=b. To remove the assignment, you could do it thus: To remove the assignment, you could do it thus: def extend(a,b): """Create a new dictionary with a's properties extended by b, without overwriting.
- Implements vs extends: When to use? What's the difference?860. extends is for extending a class. implements is for implementing an interface. The difference between an interface and a regular class is that in an interface you can not implement any of the declared methods. Only the class that "implements" the interface can implement the methods. The C++ equivalent of an interface would be an abstract ...
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