Variables, Built-In Data Types, Operators, and Arithmetic Expressions

Learn the essentials of JavaScript, including basic data types, variables, arithmetic operations, and string concatenation with comparisons to Python.

Understanding key data types, variables, operators, arithmetic expressions, and string concatenation is crucial for building and manipulating data in any programming language. This lesson will compare these concepts in Python and JavaScript.


Variables

Variables in any language are fundamental building blocks that allow us to store and manipulate data in our programs. They act as containers for storing values, which can be numbers, strings, objects, or other data types.

Python uses dynamic typing. Variables can be declared and initialized without specifying the data type.

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