Lesson 3: String Operations

• Concatenation

When we try to print something, the + sign with strings doesn’t mean addition, however it means concatenation, joining texts together. The , sign also means concatenation. Comma-separated prints add spaces.

Example A:

first = "Hello"
second = "World"
print(first + " " + second) 
print(first,second)

Output example A:

Hello World
Hello World

• Repetition

The * symbol means repetition in strings, like laughing ha three times.

Example B:

laugh = "ha"
print(laugh * 3) 

Output example B:

hahaha

• Methods

Methods are little tools for strings, letting us change how text looks.

Example C:

text = "python"
print(text.upper()) 

Output example C:

PYTHON

Example D:

text = "python"
print(text.lower()) 

Output example D:

python