Type Conversion and Coercion

Introduction

Often, we need to change value types in programs. For instance, a string may need its number updated after an arithmetic operation. For that, we change that number from string to a number type, do the arithmetic, and then change it back to a string.

For this, in JavaScript, we have type conversion. Type conversion is changing a value from one type to another.

Since JavaScript is a weakly-typed language, at-time type conversions are done automatically. This leads to two types of type conversion:

• Implicit type conversion
• Explicit type conversion

Implicit Type conversion / Type coercion

The type conversion that happens automatically is the implicit type conversion, also known as type coercion. This usually happens ...