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                合規國際互聯網加速 OSASE為企業客戶提供高速穩定SD-WAN國際加速解決方案。 廣告
                [TOC] ## .one - 處理函數在每個元素上每種事件類型最多執行一次 - 原理為處理后使用off刪除綁定 ``` $("#foo").one("click", function() { alert("This will be displayed only once."); }); ``` 等效于 ``` $( "#foo" ).on( "click", function( event ) { alert( "This will be displayed only once." ); $( this ).off( event ); }); ``` ### 語法 ``` .one( events [, data ], handler(eventObject) ) .one( events [, selector ] [, data ], handler(eventObject) ) .one( events [, selector ] [, data ] ) ``` ### 示例 ``` $("#foo").one("click", function() { alert("This will be displayed only once."); }); ```
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