Ruby

Question 1

Ruby is a dynamic language. What does it mean for a language to be dynamic?

Answer 1

Question 2

How do pointers work with Dynamic languages?

Answer 2

Question 3

How do you run a ruby file?

Answer 3

Question 4

Ho do you use -e or irb?

Answer 4

Question 5

How do you use semicolons and comments in Ruby?

Answer 5

Question 6

How do you see the type of an object in Ruby?

Answer 6

Question 7

What is the implemented toString( ) method equivalent in Ruby?

Answer 7

to_s

it is called automatically for printing basic variables:

PI = 3.14; puts PI

Question 8

How do you find the length of a string?

Answer 8

Question 9

How does x = 3+2 work internally in Ruby?

Answer 9

Question 10

In general, how does if and else work in Ruby?

Answer 10

Question 11

In gerneral, how do while loops work with Ruby?

Answer 11

Question 12

In general, what are the options for for-loops in Ruby?

Answer 12

Question 13

In general, how do methods work in Ruby?

Answer 13

Question 14

In general, how do Arrays work in Ruby?

Answer 14

Question 15

How does deep and shallow copies work in Ruby?

Answer 15

Question 16

How do you change an existing class?

Answer 16

Question 17

What are the Ruby naming conventions for:

1. Global variables
2. Instance vars
3. Constants
4. Locals/parameters/method names
5. Class names
6. Symbols

Answer 17

Question 18

How do strings with double quotes work?

Answer 18

Question 19

How do string work with single quotes?

Answer 19

Question 20

In general, how do interators work in Ruby?

Answer 20