Summary  
This chapter covers naming conventions for boolean variables, recommending prefixes like `is`, `has`, and `are` to clearly indicate their true/false nature.  

General domain of usage  
Software development variable naming conventions

### Boolean naming convention

Boolean, in programming, is a data type that is either `true` or `false`. Prefixes like `is`, `has`, and `are` added in the booleans to distinguish them from other variables. Boolean data-type has two values `true` or `false`. 

**Note**
We will discuss booleans in more detail in the upcoming chapters.

// Not clear that the identifier is a boolean
let clear = true;
console.log(clear);

// clear that the identifier is a boolean
let isClear = true;
console.log(isClear);

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Boolean Naming Convention

Boolean naming convention

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