发布于: 代码组织

保持代码简洁 (DRY)

不要重复你自己（Don't repeat yourself）；如果你在不断重复，说明你做错了。

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// BAD
if ( eventfade.data( "currently" ) !== "showing" ) {
    eventfade.stop();
}
 
if ( eventhover.data( "currently" ) !== "showing" ) {
    eventhover.stop();
}
 
if ( spans.data( "currently" ) !== "showing" ) {
    spans.stop();
}
 
// GOOD!!
var elems = [ eventfade, eventhover, spans ];
 
$.each( elems, function( i, elem ) {
    if ( elem.data( "currently" ) !== "showing" ) {
        elem.stop();
    }
});