Operators

Just list common use symbols in here.

Plus Sign +, ++

• The difference between i++, ++i

• Python do not have ++.

• In python, you can have + operator by implementing the class __add__ method.

Vertical Bar |, ||

Block :

• ()

• {}

Question Mark ?

• In java and javascript Ternary

Equal =, ==, ===

Regular expression

• Metacharacter and Quantification

  • ^

  • $

  • .

  • +

  • *

  • \

  • ?

• Understanding match() and match groups

• Look ahead

  • Good use in number of character password validation.

  • Also negative look ahead, look behind, negative look behind.

• Match into dictionary.

• You don't really use regular expression constantly.

  • Recommendation to have another text search base test.

The bitwise and shift operator

• It's brain melting operators.

• Use in more low level languages to enhance performance.

• For the high level languages, it's rarely to have them.