*/
function commafy( $_ ) {
$digitGroupingPattern = $this->digitGroupingPattern();
+ if ( $_ === null ) {
+ return '';
+ }
if ( !$digitGroupingPattern || $digitGroupingPattern === "###,###,###" ) {
// default grouping is at thousands, use the same for ###,###,### pattern too.
$this->assertEquals( '-98', $this->lang->formatNum( '-98' ) );
$this->assertEquals( '-98', $this->lang->formatNum( -98 ) );
$this->assertEquals( '-1,23,45,678', $this->lang->formatNum( -12345678 ) );
+ $this->assertEquals( '', $this->lang->formatNum( '' ) );
+ $this->assertEquals( '', $this->lang->formatNum( null ) );
}
}