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smatt
2,115 PointsWhat is considered best practice? Using var or using string, double, etcetc.
I find that declaring the types makes the code more readable, however, what is more commonplace in the industry? Would it hinder my progress to be more strict?
3 Answers
Hakim Rachidi
38,490 PointsI hear from a lot of developers they prefer var over explicit typing for several reasons
- It looks cleaner and is more readable than longly named types
- It you can easily identify variable declaration from other stuff right away
- It looks like in most other programming languages ( this is a big point for full-stack developers )
- ...
Explicit typing has it advantages too:
- you directly see the type that variable is supposed to store
- you can directly jump to the type definitions in most IDEs
- declaration are possible
In open source libraries and code contributions I read more explicit typing than implicit via var or const, mainly because of the advantage of look ups you make to the type definitions (big libraries (like AspNetCore) often contain half a dozen types)
Steven Parker
231,248 PointsI can't speak for the whole industry, but I generally use "var" whenever the type is obvious, such as when initializing from literals. But if there's any doubt what the variable will be used for, an explicit type is a good idea.
smatt
2,115 PointsThanks both for your help.