JE::Object::Number(3pm) User Contributed Perl Documentation JE::Object::Number(3pm)NAME
JE::Object::Number - JavaScript Number object class
SYNOPSIS
use JE;
use JE::Object::Number;
$j = new JE;
$js_num_obj = new JE::Object::Number $j, 953.7;
$perl_scalar = $js_num_obj->value;
0 + $js_num_obj; # 953.7
DESCRIPTION
This class implements JavaScript Number objects for JE. The difference between this and JE::Number is that that module implements primitive
number values, while this module implements the objects.
METHODS
See JE::Types for descriptions of most of the methods. Only what is specific to JE::Object::Number is explained here.
value
Returns a Perl scalar containing the number that the object holds.
class
Returns the string 'Number'.
SEE ALSO
JE
JE::Types
JE::Object
JE::Number
perl v5.14.2 2012-03-18 JE::Object::Number(3pm)
Check Out this Related Man Page
JE::Number(3pm) User Contributed Perl Documentation JE::Number(3pm)NAME
JE::Number - JavaScript number value
SYNOPSIS
use JE;
use JE::Number;
$j = JE->new;
$js_num = new JE::Number $j, 17;
$perl_num = $js_num->value;
$js_num->to_object; # returns a new JE::Object::Number
DESCRIPTION
This class implements JavaScript number values for JE. The difference between this and JE::Object::Number is that that module implements
number objects, while this module implements the primitive values.
Right now, this module simply uses Perl numbers underneath for storing the JavaScript numbers. It seems that whether Perl numbers are in
accord with the IEEE 754 standard that ECMAScript uses is system-dependent. If anyone requires IEEE 754 compliancy, a patch would be
welcome. :-)
The "new" method accepts a global (JE) object and a number as its two arguments. If the latter is an object with a "to_number" method whose
return value isa JE::Number, that object's internal value will be used. Otherwise the arg itself is used. (The precise details of the
behaviour of "new" when the second arg is a object are subject to change.) It is numified Perl-style, so 'nancy' becomes NaN and
'information' becomes Infinity.
The "value" method produces a Perl scalar. The "0+" numeric operator is overloaded and produces the same.
Stringification and boolification are overloaded and produce the same results as in JavaScript
The "typeof" and "class" methods produce the strings 'number' and 'Number', respectively.
SEE ALSO
JE
JE::Types
JE::Object::Number
perl v5.14.2 2012-03-18 JE::Number(3pm)
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