Referencia de JavaScript 1.5:Funciones globales:Boolean

De MDC

Tabla de contenidos 1 Summary 2 Syntax 3 Parameters 4 Description 5 See also

[editar] Summary

Core Function

Converts the specified value to a boolean.

[editar] Syntax

Boolean(val)

[editar] Parameters

val 

A value.

[editar] Description

Boolean is a top-level function and is not associated with any object. It is also a constructor for Boolean objects.

The Boolean method converts any value into a boolean. If val is null, undefined, false, -0, +0, NaN, or an empty string (""), Boolean returns false, otherwise it returns true for all other numbers, strings, and objects.

[editar] See also

Boolean