There are many ways to create or initialize an array.
Ruby array to string.
In the first form if no arguments are sent the new array will be empty.
That s where the to str method comes in.
This example is somewhat more complex.
One way is with the new class method names.
Returns a new array.
Ruby provides several methods for converting values from one data type to another.
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.
Ruby arrays are not as rigid as arrays in other languages.
Result values join puts result output abc.
If the delimiter passed to string split is a zero length string or regular expression then string split will act a bit differently.
Converting an array to a string.
Programming true in addition ruby 2 5 introduced the delete prefix delete suffix methods which may be useful to you.
The only classes that implement to str in ruby 2 5.
String bacon is expensive string delete suffix is expensive bacon convert a string to an array of characters.
This is what the print statement uses.
It introduces a hash and then converts the keys and values into arrays and strings.
The second form creates a copy of the array passed as a parameter the array is generated by calling to ary on the parameter.
Values a b c call join on the array.
Given our array of sharks.
This essentially turns the string into an array of equal length containing only one character strings one for each character in the string.
Ruby program that creates string arrays initialize a three element string array strings one two three puts strings length iterate over the strings with each strings each do st puts st end create an array and push three strings to it strings2 array strings2 push one strings2 push two strings2 push three write the length and display all the strings again.
So ruby instead of checking if the other object is a string which wouldn t be good for polymorphism it checks if it acts like a string.
Ruby arrays have a reverse method which can reverse the order of the elements in an array.
So we get a string of all the keys.
Ruby arrays grow automatically while adding elements to them.
String ruby programming string end with.
All objects in ruby have a to s method which converts the object to a string.
In this tutorial you ll convert strings to numbers objects to strings strings to arrays and convert between strings and symbols.
