Javascript jQuery(document).on ('focus')？
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jQuery(document).on ('focus')?
提问by user961627
Whenever the user focuses on clicks on an input, I want to trigger a method. I have the following code:
每当用户专注于点击输入时，我想触发一个方法。我有以下代码：
jQuery(document).on('focus click', function(e){
console.log("focused on " + $(e.target).attr('id'));
});
But whenever I focus on an element it just gives focused on undefined. What's wrong with this code?
但是每当我关注一个元素时，它只会给出focused on undefined. 这段代码有什么问题？
回答by Adil
You missed the input selector in bind event using on().
您使用on()错过了绑定事件中的输入选择器。
jQuery(document).on('focus click', 'input', function(e){
console.log("focused on " + $(e.target).attr('id'));
});
syntax of on().on( events [, selector ] [, data ], handler(eventObject) ), reference
on().on( events [, selector ] [, data ], handler(eventObject) ) 的语法，参考
回答by Anujith
Try:
尝试：
$(document).on('focus click', 'input', function(e){
console.log("focused on " + e.target.id);
});
Also just e.target.idis enough..
也e.target.id刚够。。
