jQuery determines that multiple instances of input file cannot be empty

  • 2020-06-19 09:38:46
  • OfStack

For example, input with two images must upload an image:

html


Select the file 1 : <input type="file" name="myfile[]" class="myfile">
Select the file 2 : <input type="file" name="myfile[]" class="myfile">

js


if($(".myfile").length == 2){     $(".myfile").each(function(){       if($(this).val() == "") {           alert(" Please upload pictures! ");
          flag = 0;
      }
    });
  
}else if($(".myfile").length !=2 ){
   
    alert(" Pictures must not be less than 2 Zhang! ");
}


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