Ruby Single Line If

With an if statement you can check if something is true.

Ruby single line if.

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. 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. I m getting into the habit of using these a lot more consistently so i wanted to share. In ruby there are two types of comments.

Use braces for single line blocks. In ruby we can write a conditional containing a single expression that normally takes up three lines. 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.

Its the most easiest typed comments. The tiny open source pillar holding up the entire internet. Do you use these ruby shorthands. Use do end for multi line blocks.

Notice that we use two equal symbols to mean equality. I m trying to write a single line if else statement in a view. 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. It is used to denote single line comment in ruby.

Ruby single line comments it is represented by sign. Single line comments. Here we will explain all the conditional statements and modifiers available in ruby. Multi line comments.

If today christmaseve puts santa s on his way end shorthand. If you don t this right you won t get the expected results. Ruby offers conditional structures that are pretty common to modern languages. Here we are going to explain both types of comment with their syntax and example.

Browse other questions tagged ruby on rails ruby on rails 4 or ask your own question.