string-slicing-concatenation-worksheet.md

String Slicing and Concatenation Worksheet

Read the code in each section and predict the output generated by the last line of code. When you are finished, run the code in IRB to check your answers.

Example:

my_string = "Ada Lovelace"
my_string.slice(0...8)
# => "Ada Love"

Problem Set

my_string = "I love Seattle"
my_string.slice(7) 

my_string = "I love Seattle"
my_string.slice(2, 4)

my_string = "I love Seattle"
my_string.slice("Seattle")

my_string = "Ada"
my_string + " Lovelace"

my_string = "Ada"
my_string << " codes" << " it!"

my_string = "Ada"
my_string.concat(" likes to code").slice(4...9)

my_string = "Hello world"
"Goodbye " + my_string.slice(6, 5) << "!"

my_string = "Hello world!"
my_string.slice(0...5).concat(", goodbye!")

my_string = "Hello world!"
my_string.slice(0) << "i" + "!"

my_string = "I love ruby"
my_string.slice(7, 4).concat(my_string.slice(2...6)) + my_string.slice(0)

my_string = "I love ruby"
"R".concat(my_string.slice(8, 3) + " rocks!")

my_string = "I love ruby"
my_string.slice(2, 4) << my_string.slice(7...11).concat(my_string.slice(2...6))