For example, in JavaScript, Boolean conditionals are often used to decide which sections of code to execute (such as in if statements ) or repeat (such as in for loops ).

Below is some JavaScript pseudocode (it's not truly executable code) demonstrating this concept.

                                    
                                        /* JavaScript if statement */
                                        if
                                        (
                                        boolean conditional)
                                        {
                                        // code to execute if the conditional is true
                                        }
                                        if
                                        (
                                        boolean conditional)
                                        {
                                        console.
                                        log
                                        (
                                        "boolean conditional resolved to true"
                                        )
                                        ;
                                        }
                                        else
                                        {
                                        console.
                                        log
                                        (
                                        "boolean conditional resolved to false"
                                        )
                                        ;
                                        }
                                        /* JavaScript for loop */
                                        for
                                        (
                                        control variable;
                                        boolean conditional;
                                        counter)
                                        {
                                        // code to execute repeatedly if the conditional is true
                                        }
                                    
                                

The Boolean value is named after English mathematician George Boole , who pioneered the field of mathematical logic.

Above is a general introduction. The term Boolean can have more specific meanings depending on the context. It may refer to:

Boolean (JavaScript)

A Boolean in JavaScript is a Primitive that can be either true or false .

Boolean attribute (ARIA)

A boolean attribute in ARIA is an Enumerated that includes true or false in the enumerated list.

Boolean attribute (HTML)

A boolean attribute in HTML is an attribute that represents true or false values. If an HTML tag contains a boolean attribute - no matter the value of that attribute - the attribute is set to true on that element. If an HTML tag does not contain the attribute, the attribute is set to false .