Is there an “exists” function for jQuery?

前端 未结 30 3150
野性不改
野性不改 2020-11-21 04:52

How can I check the existence of an element in jQuery?

The current code that I have is this:

if ($(selector).length > 0) {
    // Do something
}
<         


        
30条回答
  •  眼角桃花
    2020-11-21 05:29

    You can check element is present or not using length in java script. If length is greater than zero then element is present if length is zero then element is not present

    // These by Id
    if ($("#elementid").length > 0) {
      // Element is Present
    } else {
      // Element is not Present
    }
    
    // These by Class
    if ($(".elementClass").length > 0) {
      // Element is Present
    } else {
      // Element is not Present
    }
    

提交回复
热议问题