And it does not work in single quoted strings.
Ruby string interpolation multiline.
A string literal or anonymous string is a type of literal in programming for the representation of a string value within the source code of a computer program most often in modern languages this is a quoted sequence of characters formally bracketed delimiters as in x foo where foo is a string literal with value foo the quotes are not part of the value and one must use a method.
Damir svrtan 3 min read.
A heredoc is a way to define a multiline string while maintaining the original indentation formatting.
At least this outputs without any extra indentation.
My str foo this is the first line.
This is used to embed snippets of code like sql or html.
This ruby style guide recommends best practices so that real world ruby programmers can write code that can be maintained by other real world ruby programmers.
Multiline strings in ruby 2 3 the squiggly heredoc.
A style guide that reflects real world usage gets used while a style guide that holds to an ideal that has been rejected by the people it is supposed to help risks not getting used at.
If you have you already know that ruby doesn t have a nice out of the box solution for this problem.
Have you ever had to write a nicely indented multiline string in ruby.
This is the second line.
1 1 is 1 1.
You ll encounter all of these methods as you work with existing ruby code as each project tends to have its own style.
In this case a b c creates a new string.
As you can see there are a lot of ways to handle newlines and multiline strings in ruby.
So why do people prefer string interpolation.
At least it hadn t until a week ago when the squiggly heredoc was introduced.
Heredocs in ruby also supports string interpolation.
Javascript doesn t support any kind of advanced string handling as of ecmascript 5 version 6 supports multi line strings and interpolation so to make it readable we have to handle it using the array syntax.
Query sql select from food where healthy true sql you use this syntax to define a heredoc in ruby.
A nice to meet you b c do you like blueberries a b c nice to meet you do you like blueberries you can use the operator to append a string to another.
Concatenation looks like this.
Foo this is the first line nthis is the second line n1 1 is 2 n note the absence of a leading newline character.
