Ruby Single Line If

Multi line comments.

Ruby single line if.

The overflow blog the overflow 36. It is used to denote single line comment in ruby. Use do end for multi line blocks. 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.

Single line comments. One equals sign in ruby means assignment make sure to use when you want to find out if two things are the same. These shorthands beautifully consolidate three or more lines of code into one readable line of code. In ruby we can write a conditional containing a single expression that normally takes up three lines.

Here we are going to explain both types of comment with their syntax and example. I m trying to write a single line if else statement in a view. Its the most easiest typed comments. Ruby single line comments it is represented by sign.

Ruby offers conditional structures that are pretty common to modern languages. If today christmaseve puts santa s on his way end shorthand. Notice that we use two equal symbols to mean equality. Browse other questions tagged ruby on rails ruby on rails 4 or ask your own question.

The tiny open source pillar holding up the entire internet. Here we will explain all the conditional statements and modifiers available in ruby. Use braces for single line blocks. I m getting into the habit of using these a lot more consistently so i wanted to share.

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. With an if statement you can check if something is true. In ruby there are two types of comments. If you don t this right you won t get the expected results.

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.