The overflow blog the overflow 36.
Ruby single line if.
I m trying to write a single line if else statement in a view.
Browse other questions tagged ruby on rails ruby on rails 4 or ask your own question.
One equals sign in ruby means assignment make sure to use when you want to find out if two things are the same.
I ve touched on this gotcha briefly in the past when discussing the wat video but i thought a few examples of when single line conditionals can bite you would be fun.
Ruby single line comments it is represented by sign.
These shorthands beautifully consolidate three or more lines of code into one readable line of code.
Use braces for single line blocks.
Some languages seem to encourage terse coding as a way of being code studly but ruby coding style encourages elegance readability and maintainability above studliness.
It is used to denote single line comment in ruby.
I m getting into the habit of using these a lot more consistently so i wanted to share.
Ruby offers conditional structures that are pretty common to modern languages.
With an if statement you can check if something is true.
Multi line comments.
But when you want to check for the opposite not true false.
If you don t this right you won t get the expected results.
In ruby we can write a conditional containing a single expression that normally takes up three lines.
Do you use these ruby shorthands.
Here we will explain all the conditional statements and modifiers available in ruby.
Use do end for multi line blocks.
Any definition should be written in a way that is clear and clean for maintenance and readability reasons so if the single line becomes unwieldy or confusing then spread it out.
Notice that we use two equal symbols to mean equality.
The tiny open source pillar holding up the entire internet.
This makes sense because do end reads badly in a one liner but for multi line blocks leaving a closing hanging on its own line is inconsistent with everything else that uses end in ruby such as module class method definitions def etc and control structures if.
Its the most easiest typed comments.
If today christmaseve puts santa s on his way end shorthand.
