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Yyds dry inventory JS intercept file suffix

2022-07-05 12:52:00 【51CTO】

Method 1 :

      
      
       
       <input type="file" onChange="change(event)">
       
       
<script>
       
       
function change(event) {
       
       
    var fileName = event.target.files[0].name.toLowerCase();
       
       
    var lastIndex = fileName.lastIndexOf('.');
       
       
    var suffix = fileName.substring(lastIndex, fileName.length);
       
       
    console.log(suffix);
       
       
}
       
       
</script>
      
      
      
      
       
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Method 2 :

      
      
       
       <input type="file" onChange="change(event)">
       
       
<script>
       
       
function change(event) {
       
       
    var fileName = event.target.files[0].name.toLowerCase();
       
       
    var suffix = fileName.split('.').pop();
       
       
    console.log(suffix);
       
       
}
       
       
</script>
      
      
      
      
       
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Method 3 ：

      
      
       
       <input type="file" onChange="change(event)">
       
       
<script>
       
       
function change(event) {
       
       
    var fileName = event.target.files[0].name.toLowerCase();
       
       
    var suffix = fileName.match(/.[^.]+$/)[0];
       
       
    console.log(suffix);
       
       
}
      
      
      
      
       
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