This feature is obsolete. Although it may still work in some browsers, its use is discouraged since it could be removed at any time. Try to avoid using it.
Replaced by JS::ToBoolean
||The context in which to perform the conversion. Requires request. In a
||The value to convert.|
||Out parameter. On success,
v, to a boolean value. It implements the ToBoolean operator specified in ECMA 262-3 §9.2. On success,
JS_ValueToBoolean stores the converted value in
*bp and returns
JS_TRUE. On error or exception, it returns
JS_FALSE, and the value left in
*bp is undefined.
For versions greater than
JSVERSION_1_2, all objects convert to
Boolean wrapper objects like the one produced by
new Boolean(false). This is the behavior specified in ECMA 262-3 §9.2. See related discussion on Google Groups.