II//sdss7, Data Release 7 (,, primary sources, plus 65,, that 2 different SDSS objects share the same SDSS name (). 1. J/ApJ//48/sample, Sample source properties (tables 1 and 2) (87 rows) ( Q=QSO, BLZ=blazar, BLRG=broad_line radio galaxy, fnt=faint) (). [0/1] Fmag quality of the PSF fitting Qfit () (CODE_QUALITY). f_Fmag, [0/7] Quality flag (best=1) on Fmag (Note 2) ().

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Put the conditional operator in parentheses This helps with reading, because it metafode easier to make out the scope of the operator: It also mentions practices I like that are more controversial.

It is also easier to remove the code fragment or to move it somewhere else. Most code bases are filled with new ideas and concepts.

Three parts of a code base help: Two brace styles are most common in C-like languages such as Java and JavaScript: JavaScript has many great style guides. Initializing an array with elements avoid!

EFPA Ethics – Meta-Code of Ethics

Other considerations are mentioned in Netacode Literals. In contrast to textbooks, the added challenge with code is that people will not read it linearly.

Tight whitespace I like relatively tight whitespace. It is thus important to mstacode the former as easy as possible. A Meta Code Style Guide. I even prefer the first of the following two conditions, even though they are equivalent: The idea is to complement existing style guides rather than to replace them.


One reason for that is objective.

When it comes to style, there are many decisions to make. Obviously, an object literal is not a code block, but things look more consistent and you are less likely to make mistakes if both are formatted the same way.

6.2 Metacode

If you are inside a block, stay inside that block As an addendum to the previous rule: Everyone knows that debugging is twice as hard as writing a program in the first place. Code Should Be Consistent. It should also contain a glossary for all important concepts.

I prefer four spaces per level of indentation, because that makes the indentation more visible. Much cleverness is directed at these optimizations. So if you are as clever as you can be when you write it, how will you ever debug it? Instead, this chapter describes meta style rules and surveys existing style guides and established best practices.

RAVE – the Radial Velocity Experiment

If you return an object literal, you must put the opening brace in the same line as the keyword returnlike this otherwise, automatic semicolon insertion inserts a semicolon after returnmeaning that nothing is returned; see Pitfall: These are style guides that I like: There are metacod important rules for writing consistent code. It should tell you how to get started with the code base and provide you with the big picture.


The following two expressions are equivalent: As an addendum to the previous rule: Several constructors produce objects that can also be created by literals. JavaScript is only so forgiving e. And you should be aware that you can return any object in a constructor. Whenever you are considering a style question, ask yourself: I recommend never deviating from this rule.

Avoid Creating Global Variables. It has been inherited from Java and most style guides recommend it. Prefer constructors over other instance creation patterns I recommend that you: For most code, the time used for reading it is much greater than the time used for writing it.

This is more self-explanatory and safer than comparing with undefined or checking for truthiness:.