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joon hee - StandardLibrary-1.81

        var x = 512301.01317;
        alert( x.toExponential() );
        alert( x.toFixed(0) );

/*=pod

=head1 NAME

Number - Number Object

=head1 SYNOPSIS

	var x = 512301.01317;
	alert( x.toExponential() );
	alert( x.toFixed(0) );
	
=head1 DESCRIPTION

This implements methods on all Numbers.

=head1 METHODS

=head2 Inherited

From Function.prototype:
apply, call, toSource, toString, valueOf 

From Object.prototype:
hasOwnProperty, isPrototypeOf, propertyIsEnumerable, unwatch, watch

=cut*/



/*=pod

=head2 Constructor() Returns Number

*** Not Implementable In Standard JavaScript

=cut*/

/*=pod

=head2 valueOf() Returns Number

*** Not Implementable In Standard JavaScript

This gets you the primitive value - something standard JavaScript cannot obtain.

=cut*/





/*=pod

=head2 toExponential() Returns String

=cut*/

Number.prototype.toExponential = function() {
	
	// get a number with only one digit that is not decimal
	var points = (this.toString().split('.'))[0].length - 1;
	
	var newValue = this.valueOf();
	newValue /= Math.pow(10,points);
	
	// Round to Point:
	var decimalPoints = arguments[0];
	if( typeof decimalPoints == 'undefined' ) {
		decimalPoints = (this.toString().length) - 2;
		if( 0 > decimalPoints ) {
			decimalPoints = 0;
		}
	}
	
	newValue *= Math.pow(10,decimalPoints);
	newValue = Math.round(newValue);
	newValue /= Math.pow(10,decimalPoints);
	
	// return values:
	return(newValue + "e+" + points);
};

/*=pod

=head2 toFixed( Number decimalPoints ) Returns String

=cut*/

Number.prototype.toFixed = function( decimalPoints ) {

	if( typeof decimalPoints == 'undefined' ) {
		decimalPoints = 0;
	}
	
	var len = this.toString().length;
	var spaces = this.toString().split('.');
	var currentDec = len - spaces[0].length - 1;
	
	var rval = '';
	if(decimalPoints > currentDec) {
		rval = this.toString();
		for( var i = 0; i < (decimalPoints-currentDec); i++ ) {
			rval += '0';
		}
	} else {
		rval += spaces[0];
		if(decimalPoints != 0 && spaces.length != 1 ){
			rval += '.';
			for( var i = 0; i < decimalPoints; i++ ){
				rval += spaces[1].charAt(i);
			}
		}
	}
	
	return rval;
	
};



/*=pod

=head2 toLocaleString() Returns String

=cut*/

Number.prototype.toLocaleString = function() {
	return( "" + this );
};


/*=pod

=head2 toPrecision( Number precision ) Returns String

=cut*/

Number.prototype.toPrecision = function( precision ) {

	// Use toString if no precision definition is produced.
	if( typeof precision == 'undefined' ) {
		return this.toString();
	}

	if( precision.toString().indexOf(".") != -1 ) {
		precision = Math.floor(precision);
	}	
	// Check for Range Errors:
	if( 0 >= precision || precision >= 101 ) {
		throw new RangeError('precision ' + precision + ' out of range');
	}

	var rval = '';
	var spaces = this.toString().split('.');
	
	var decimalPoints = 0;
	if( typeof spaces[1] != 'undefined' ) { decimalPoints = spaces[1].length; }
	var currentPoints = spaces[0].length + decimalPoints;
	var newDecimalPoints = precision - spaces[0].length;
	
	if( newDecimalPoints > decimalPoints ) {
		var zeroCount = precision - currentPoints;
		rval += this.toString()
		if( decimalPoints == 0 ) { rval += '.'; }
		for( var i = 0; i < zeroCount; i++ ) {
			rval += '0';
		}
	} else {
		
		if( newDecimalPoints > 0 ) {
			rval = this.toString().substr(0,precision+1);
		} else {
			var value = parseInt( spaces[0] );
			if( spaces[0].length == precision ) {
				return( value.toString() );
			}
			return( value.toExponential(precision-1) );
		}
		
	}

	return rval;

};



/*=pod

=head2 toSource() Returns String

=cut*/


Number.prototype.toSource = function() {
	return( '(new Number("' + this.toString() + '"))' );
};




/*=pod

=head2 toString() Returns String

=cut*/

Number.prototype.toString = function() {
	return( "" + this );
}; 












/*=pod

=head1 AUTHOR

Jhuni, <jhuni_x@yahoo.com>

=head1 COPYRIGHT

Public Domain

=cut*/