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Editorial Team
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Asked: 2026-06-14T15:36:10+00:00

I wanted to know what would be the best method to validate (to ensure

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I wanted to know what would be the best method to validate (to ensure that all 4 of the input boxes are not blank)?

<html>

  <head></head>

  <body>
    <input type="text" id="i1">
    <input type="text" id="i2">
    <input type="text" id="i3">
    <input type="text" id="i4">
  </body>

</html>
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1 Answer

  1. Editorial Team

    If they are all to be inputs then you can use document.getElementsByTagName

    var allinputs = document.getElementsByTagName("input");
console.log(allinputs);
for (var i = 0; i < allinputs.length; i++) {
    if(allinputs[i].value.length == 0){
      alert('need to have something here');
       return;
    }
}

    here is a working fiddle

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