# boolean

#### Structure

• Has only two values: true and false.
Let nameFieldChecked = true; // yes, name field is checked
let ageFieldChecked = false; // no, age field is not checked
• The boolean data type has only two possible values: true and false.
• Use this data type for simple flags that track true/false conditions.
• This type is commonly used to store yes/no values: true means "yes, correct", and false means "no, incorrect".

boolean

## boolean — Structure map

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