Explain the difference between nil and false in ruby?

5

---

Explain about interpolation?

5

---

Explain about variables?

5

---

Explain about methods?

5

---

What is sysread method in Ruby?

5

---

How to check whether a directory exist or not in Ruby?

5

---

Explain Ruby if-else statement?

5

---

Explain break statement in Ruby?

5

---

Write the command to get installed Ruby version in your system?

5

---

What is RubyGems in Ruby programming language?

5

---

Explain case statement in Ruby?

5

---

what is the role of sub-directory app/controllers and app/helpers?

5

---

Explain raise statement in Ruby?

5

---

Explain for loop in Ruby?

5

---

Explain redo statement in Ruby?

5

---