css how to hide a button code example

Example 1: javascript hide div

// javascript
<script>
	document.getElementById("id").style.display = "none";  //hide
	document.getElementById("id").style.display = "block"; //show
	document.getElementById("id").style.display = ""; 	   //show
</script>

// html
<html>
	<div id="id" style="display:none">
    <div id="id" style="display:block">
</html>

// jquery
<script>
	$("#id").hide();      
	$("#id").show();
</script>

Example 2: hide automatically show and hide javascript

function toggleClock() {
    // get the clock
    var myClock = document.getElementById('clock');

    // get the current value of the clock's display property
    var displaySetting = myClock.style.display;

    // also get the clock button, so we can change what it says
    var clockButton = document.getElementById('clockButton');

    // now toggle the clock and the button text, depending on current state
    if (displaySetting == 'block') {
      // clock is visible. hide it
      myClock.style.display = 'none';
      // change button text
      clockButton.innerHTML = 'Show clock';
    }
    else {
      // clock is hidden. show it
      myClock.style.display = 'block';
      // change button text
      clockButton.innerHTML = 'Hide clock';
    }
  }

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