html button onclick call javascript function code example

Example 1: javascript button

<button onclick="Function()">Text</button>

Example 2: javascript onclick

var myElem = document.getElementByID('ElemID');
myElem.onclick = function() {
	//do stuff
}

Example 3: onclick in js

<input type="text" name="text" id="test" onmouseover="skriv('klick')">
    <input type="button" name="send" value="Skicka" id="klick" onclick="skriv('test')">
    
    
    <script src="lib/script.js"></script>


// in lib/script.js

  function skriv(name) {
    document.getElementById(name).style.backgroundColor='red';
  }

Example 4: calling function on click html

<img src="hospital.png" id="hospitals" onclick="damarkers();">

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Java Example