Ruby Multiline String Array

In the first form if no arguments are sent the new array will be empty.

Ruby multiline string array.

The second form creates a copy of the array passed as a parameter the array is generated by calling to ary on the parameter. String can be written within double quotes. At least it hadn t until a week ago when the squiggly heredoc was introduced. We will show three ways to print multi line string.

Have you ever had to write a nicely indented multiline string in ruby. When a size and an optional default are sent an array is created with size copies of default take notice that all elements will reference the same object default. Multiline strings in ruby 2 3 the squiggly heredoc. Arrays are often used to group together lists of similar data types but in ruby arrays can contain any value or a mix of values including other arrays.

If you have you already know that ruby doesn t have a nice out of the box solution for this problem. The first syntax uses and additional dash but allows you to indent the end of here doc delimiter eos in the example. Writing multiline string is very simple in ruby language. Interpolation or merging of variables into strings is a powerful technique.

It allows you to templatize a string. You have learned about string concatenation appending prepending interpolation in ruby this allows you to combine multiple strings together. How to use ruby string interpolation. If you type the code above in your editor and syntax highlighting for ruby code is used it should highlight the code in the double quoted string so it gives you a visual clue about the interpolation.

Ruby supports multiline strings by providing two types of here doc syntax. Damir svrtan 3 min read. The character is used and string is enclosed within character. String each line separates lines by the optional argument sep string which defaults to which itself defaults to n simply.

Here s an example of an array that contains a string a nil value an integer and an array of strings. Working with strings working with arrays 1 working with hashes 1 string interpolation.