Why Go succeeded; Java's naming conventions; & Python optimization tips

#todayilearned #go #java #python

TL;DR style notes from articles I read today.

Writing a formal specification of the language.
Making Go attractive for app developers to use. Having key software written in Go created confidence in it.
Establishing a strong open-source community that supported Go. Being prepared for a tricky balancing act while listening and implementing.
Counterintuitive, but making the language hard to change. Yes, it creates rigidity but also makes it harder for old code to break.
Constantly listening to the community, but sticking to the things Go team believed are important from their specs.

Full post here, 4 mins read

In the base package name, put your company’s domain in reverse order & then add the project name & maybe version - all in lower case.
Use nouns, written in CamelCase (with first letter capital), for class names. Class names should say what function or variable to expect from it as well.
Choose short, meaningful nouns for variables and fields, saying what values or variables they hold, in camelCase.
Avoid single character variables. Avoid underscore & dollar as first letters. For boolean values, start with ‘is’ or ‘has’, since they are yes/no questions.
Put constants in all-caps, with underscores to separate words.
Make methods and functions verbs, implying what they do in 2-3 words in camelCase. Use ‘get’ & ‘set’ to start the names of data fetching and setting functions.
Use similar conventions as classes and interfaces for enums and annotations, respectively, with enums in all-caps.

Full post here, 5 mins read

Optimize the slow code first. In the case of Python, PyPy helps you use less space and work faster than CPython’s typical bulk allows for.
Profile codes (using CProfile or PyCallGraph, say) to analyze how they work in different situations and estimate the time taken.
Python strings tend to be immutable and slow. Concatenate them with the .join() method rather than relying on the memory-hungry (+) operator alone.
Use list comprehension rather than loops for faster coding and execution.
For memory optimization, prefer xrange over the range function to speed up the creation of integer lists.

Full post here, 4 mins read

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