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JavaScript - onkeypress event example

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Created by:

Niac

508

In this article, we would like to show you onkeypress event example in JavaScript.

Quick solution:

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var myElement = document.querySelector('#my-element');
​
myElement.addEventListener('keypress', function() {
    console.log('onkeypress event occurred.');
});

or:

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<input type="text" onkeypress="handleKeypress()">

or:

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var myElement = document.querySelector('#my-element');
​
myElement.onkeypress = function() {
    console.log('onkeypress event occurred.');
};

Practical examples

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There are three common ways how to use onkeypress event:

with event listener,
with element attribute,
with element property.

1. Event listener based example

Edit

In this section, we want to show how to use onkeypress event on input element via event listener mechanism.

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<!doctype html>
<html>
  <body>
    <p>Type something: </p>
    <input type="text" id="my-input">
    <script>
      var myInput = document.querySelector('#my-input');
​
      myInput.addEventListener('keypress', function() {
        console.log('onkeypress event occurred.');
      });
    </script>
  </body>
</html>

Auto running

2. Attribute based example

Edit

In this section, we want to show how to use onkeypress event on input element via attribute.

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<!doctype html>
<html>
  <body>
    <p>Type something: </p>
    <input type="text" onkeypress="handleKeypress()">
    <script>
      function handleKeypress(){
        console.log('onkeypress event occurred.');
      }
    </script>
  </body>
</html>

Auto running

3. Property based example

Edit

In this section, we want to show how to use onkeypress event on input element via property.

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<!doctype html>
<html>
  <body>
    <p>Type something: </p>
    <input type="text" id="my-input">
    <script>
      var myInput = document.querySelector('#my-input');
​
      myInput.onkeypress = function() {
        console.log('onkeypress event occurred.');
      };
    </script>
  </body>
</html>