javascript submit button onclick code example

Example 1: HTML button onclick

<!DOCTYPE html>
<html>
  <head>
    <title>Title of the document</title>
  </head>
  <body>
    <p>There is a hidden message for you. Click to see it.</p>
    <button onclick="myFunction()">Click me!</button>
    <p id="demo"></p>
    <script>
      function myFunction() {
        document.getElementById("demo").innerHTML = "Hello Dear Visitor!</br> We are happy that you've chosen our website to learn programming languages. We're sure you'll become one of the best programmers in your country. Good luck to you!";
      }
    </script>
  </body>
</html>

Example 2: button functions html

<script>
 function myFunction() {
   alert("ALERT");
 }
</script>
<button onclick="myFunction">Click</button>

Example 3: javascript onclick

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

Example 4: html submit form onclick

var form = document.getElementById("form-id");

document.getElementById("your-id").addEventListener("click", function () {
  form.submit();
});

Example 5: input type on click submit buttom show

<button type="button" onclick="my_button_click_handler">Click this button</button>
<script>
function my_button_click_handler()
{
alert('Button Clcked');
}
</script>

Example 6: how to create a form without a submit button javascript

//you have to have the form tag in this format 
<form id="myFunction" onClick= { myFunction } >
 <input type="file" name="fileToUpload" id="myFunction" />
</form>

//from there you would have to create a function 
function myFunction() { 
          document.getElementById("myFunction").submit(); 
        }
//if this does not work, start to pray lol and do a lot of digging in 
//the browser, good luck !

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