Boolean() constructor
Baseline Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
El constructor Boolean() se usa para crear objetos Boolean.
Pruébalo
const flag = new Boolean();
console.log(flag);
// Expected output: false
Sintaxis
new Boolean([value])
Parámetros
valueOpcional-
El valor inicial del objeto
Boolean.
Ejemplos
Creación de objetos Boolean con un valor inicial de false
js
var bNoParam = new Boolean();
var bZero = new Boolean(0);
var bNull = new Boolean(null);
var bEmptyString = new Boolean("");
var bfalse = new Boolean(false);
Creación de objetos Boolean con un valor inicial de true
js
var btrue = new Boolean(true);
var btrueString = new Boolean("true");
var bfalseString = new Boolean("false");
var bSuLin = new Boolean("Su Lin");
var bArrayProto = new Boolean([]);
var bObjProto = new Boolean({});
Especificaciones
| Specification |
|---|
| ECMAScript® 2026 Language Specification # sec-boolean-constructor |