JavaScript: el objeto booleano
los BooleanEl objeto representa dos valores, "verdadero" o "falso". Si el parámetro de valor se omite o es 0, -0, nulo, falso,NaN, undefined, o la cadena vacía (""), el objeto tiene un valor inicial falso.
Sintaxis
Utilice la siguiente sintaxis para crear un boolean objeto.
var val = new Boolean(value);
Propiedades booleanas
Aquí hay una lista de las propiedades del objeto booleano:
No Señor. | Descripción de propiedad |
---|---|
1 | constructor Returns a reference to the Boolean function that created the object. |
2 | prototype The prototype property allows you to add properties and methods to an object. |
In the following sections, we will have a few examples to illustrate the properties of Boolean object.
Boolean Methods
Here is a list of the methods of Boolean object and their description.
Sr.No. | Method & Description |
---|---|
1 | toSource() Returns a string containing the source of the Boolean object; you can use this string to create an equivalent object. |
2 | toString() Returns a string of either "true" or "false" depending upon the value of the object. |
3 | valueOf() Returns the primitive value of the Boolean object. |
In the following sections, we will have a few examples to demonstrate the usage of the Boolean methods.