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Random number only shows 0 in HTML and Javascript

I'm making a random number generator where the user inputs 2 numbers to get a random number between them, however, when I run it the random number always shows 0

The code is below:

function generateRandomNumber() {
  var a = document.getElementById('number_a').value
  var b = document.getElementById('number_b').value
  var random = Math.floor(Math.random(a, b))
  document.getElementById('randomNumber').innerHTML = random
}
<div>
  <input type="text" id="number_a" class="range" onkeypress="return isNumberKey(event)" title="FROM">
  <input type="text" id="number_b" class="range" onkeypress="return isNumberKey(event)" title="TO">
  <br>
  <button class="button" onclick="generateRandomNumber()">Generate random number!</button>
  <h1>Random number will generate here:
    <p id="randomNumber">Null</p>
  </h1>
</div>

about 4 years ago · Juan Pablo Isaza
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