jquery file what does it mean

file means "file" and is a selector in jquery. You can select input elements with the [type=file] attribute, and the syntax is [$(":file")].

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Definition and usage

: The file selector selects input elements with type=file.

Syntax

$(":file")

Example

Select the one with type="file"<input> Elements:

 

<script>
$(document).ready(function(){
  $(&quot;:file&quot;).css("background-color","red");
});
</script>




用户名: 

文件: 

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