You can use the Boolean() function to find out if an expression (or a variable) is true: Or even easier: The chapter JS Comparisons gives a full overview of comparison operators. The chapter JS If Else gives a full overview of conditional statements. Here are some examples:

Mar 6, 2025 · Boolean values can be one of two values: true or false, representing the truth value of a logical proposition. Boolean values are typically produced by relational operators, equality operators, and logical NOT (!). They can also be produced by functions that represent conditions, such as Array.isArray().

Dec 11, 2024 · To represent logical values, JavaScript uses the Boolean data type, which has two possible values: true or false. These values often result from comparisons or logical operations. Additionally, the Boolean () function can convert other types of values into Boolean, determining their truthy or falsy nature. The Boolean () Function

Feb 1, 2020 · Booleans are a primitive datatype commonly used in computer programming languages. By definition, a boolean has two possible values: true or false. In JavaScript, there is often implicit type coercion to boolean. If for example you have an if statement which checks a certain expression, that expression will be coerced to a boolean:

Mar 17, 2025 · In JavaScript, a boolean is a primitive data type that represents a logical entity with two values: true and false. Booleans are essential for controlling the flow of your code through conditional statements and loops.

Aug 21, 2024 · By mastering booleans and their associated concepts like truthy/falsy values, logical operators, and comparison operators, you'll be better equipped to write clear, efficient, and bug-free JavaScript code.

Jan 16, 2025 · In JavaScript, the Boolean data type is one of the fundamental types that represent two possible values: true and false. These values are essential for controlling the flow of logic in programming. Booleans are often derived from expressions that evaluate to true or false, such as comparisons or logical operations. For example:

A JavaScript boolean let’s you know whether something is TRUE or FALSE, on or off, yes or no, etc. Learn how to use boolean values in your JavaScript coding today!

Mar 17, 2025 · Mastering boolean code in JavaScript is key to writing robust and efficient code. By understanding how to work with boolean values, conditional statements, logical operators, and truthy/falsy values, you can elevate your JavaScript programming skills and build more sophisticated applications.

Summary: in this tutorial, you will learn about the JavaScript Boolean object and the differences between the Boolean object and the boolean primitive type. JavaScript provides a boolean primitive type that has two values of true and false. The following example declares two variables that hold boolean values of false and true: