JavaScript Boolean constructor

let bool = false;
let text = bool.constructor;

Description

The constructor property returns the function that created the Boolean prototype.

For JavaScript booleans the constructor property returns:

function Boolean() { [native code] }

boolean.constructor

function Boolean() { [native code] }

constructor is an ECMAScript1 (ES1) feature.

ES1 (JavaScript 1997) is fully supported in all browsers:


Chrome	Edge	Firefox	Safari	Opera	IE
Yes	Yes	Yes	Yes	Yes	Yes