javascript - How can I detect pressing Enter on the keyboard using jQuery? - Stack Overflow

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I would like to detect whether the user has pressed Enter using jQuery.

How is this possible? Does it require a plugin?

It looks like I need to use the keypress() method.

Are there browser issues with that command - like are there any browser compatibility issues I should know about?

I would like to detect whether the user has pressed Enter using jQuery.

How is this possible? Does it require a plugin?

It looks like I need to use the keypress() method.

Are there browser issues with that command - like are there any browser compatibility issues I should know about?

• javascript
• jquery
• keyboard-events
• enter
• jquery-events

Share Improve this question Follow edited Apr 28, 2022 at 20:49 Peter Mortensen 31.6k2222 gold badges109109 silver badges133133 bronze badges asked Jun 11, 2009 at 6:39 chrischris 21.2k2929 gold badges7878 silver badges9090 bronze badges 4

• link about this .keypress() | jQuery API Documentation – Haim Evgi Commented Jun 11, 2009 at 6:43
• 6 One of the best things in Javascript frameworks is that they should be by default cross-browser compatible. They handle the browser compatibility checks so that the user doesn't have to. I haven't read the JQuery source code but I doubt the keypress functionality is any different in that sense. – miek Commented Jun 11, 2009 at 6:54
• 3 the only browser compatibility issue is that you should use e.which instead of e.keyCode to detect the ascii code. – Daniel Commented Jan 19, 2012 at 18:54
• 1 stackoverflow.com/questions/302122/… – Lemo Commented Jul 11, 2012 at 11:07

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20 Answers 20

Sorted by: Reset to default 1508

The whole point of jQuery is that you don't have to worry about browser differences. I am pretty sure you can safely go with enter being 13 in all browsers. So with that in mind, you can do this:

$(document).on('keypress',function(e) {
    if(e.which == 13) {
        alert('You pressed enter!');
    }
});

I wrote a small plugin to make it easier to bind the "on enter key pressed" event:

$.fn.enterKey = function (fnc) {
    return this.each(function () {
        $(this).keypress(function (ev) {
            var keycode = (ev.keyCode ? ev.keyCode : ev.which);
            if (keycode == '13') {
                fnc.call(this, ev);
            }
        })
    })
}

Usage:

$("#input").enterKey(function () {
    alert('Enter!');
})

I couldn't get the code posted by Paolo Bergantino to work, but when I changed it to $(document) and e.which instead of e.keyCode then I found it to work faultlessly.

$(document).keypress(function(e) {
    if(e.which == 13) {
        alert('You pressed Enter!');
    }
});

Link to example on JS Bin

I found this to be more cross-browser compatible:

$(document).keypress(function(event) {
    var keycode = event.keyCode || event.which;
    if(keycode == '13') {
        alert('You pressed a "enter" key in somewhere');    
    }
});

You can do this using the jQuery 'keydown' event handler:

$("#start").on("keydown", function(event) {
  if(event.which == 13)
    alert("Entered!");
});

Use event.key and modern JavaScript!

$(document).keypress(function(event) {
    if (event.key === "Enter") {
        // Do something
    }
});

Or without jQuery:

document.addEventListener("keypress", function onEvent(event) {
    if (event.key === "Enter") {
        // Do something better
    }
});

Mozilla documentation

Supported Browsers

I came up with this solution:

$(document).ready(function(){

  $('#loginforms').keypress(function(e) {
    if (e.which == 13) {
    //e.preventDefault();
    alert('login pressed');
    }
  });

 $('#signupforms').keypress(function(e) {
    if (e.which == 13) {
      //e.preventDefault();
      alert('register');
    }
  });
});

There's a keypress() event method. The Enter key's ASCII number is 13 and is not dependent on which browser is being used.

A minor extension of Andrea's answer makes the helper method more useful when you may also want to capture modified enter presses (i.e., Ctrl + Enter or Shift + Enter). For example, this variant allows binding like:

$('textarea').enterKey(function() {$(this).closest('form').submit(); }, 'ctrl')

to submit a form when the user presses Ctrl + Enter with focus on that form's textarea.

$.fn.enterKey = function (fnc, mod) {
    return this.each(function () {
        $(this).keypress(function (ev) {
            var keycode = (ev.keyCode ? ev.keyCode : ev.which);
            if ((keycode == '13' || keycode == '10') && (!mod || ev[mod + 'Key'])) {
                fnc.call(this, ev);
            }
        })
    })
}

(See also *Ctrl + Enter using jQuery in a TEXTAREA)

As the keypress event isn't covered by any official specification, the actual behavior encountered when using it may differ across browsers, browser versions, and platforms.

$(document).keydown(function(event) {
  if (event.keyCode || event.which === 13) {
    // Cancel the default action, if needed
    event.preventDefault();
    // Call function, trigger events and everything you want to do. Example: Trigger the button element with a click
    $("#btn").trigger('click');
  }
})

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
<button id="btn" onclick="console.log('Button Pressed.')">&nbsp</button>

In some cases, you may need to suppress the ENTER key for a certain area of a page but not for other areas of a page, like the page below that contains a header <div> with a SEARCH field.

It took me a bit to figure out how to do this, and I am posting this simple yet complete example up here for the community.

<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
  <title>Test Script</title>
  <script src="/lib/js/jquery-1.7.1.min.js" type="text/javascript"></script>
  <script type="text/javascript">
    $('.container .content input').keypress(function (event) {
      if (event.keyCode == 10 || event.keyCode == 13) {
        alert('Form Submission needs to occur using the Submit button.');
        event.preventDefault();
      }
    });
  </script>
</head>
  <body>
    <div class="container">
      <div class="header">
        <div class="FileSearch">
          <!-- Other HTML here -->
        </div>
      </div>
      <div class="content">
        <form id="testInput" action="#" method="post">
        <input type="text" name="text1" />
        <input type="text" name="text2" />
        <input type="text" name="text3" />
        <input type="submit" name="Submit" value="Submit" />
        </form>
      </div>
    </div>
  </body>
</html>

Link to JSFiddle Playground: The [Submit] button does not do anything, but pressing ENTER from one of the Text Box controls will not submit the form.

Try this to detect the Enter key pressed.

$(document).on("keypress", function(e){
    if(e.which == 13){
        alert("You've pressed the enter key!");
    }
});

See demo @ detect enter key press on keyboard

I used $(document).on("keydown").

On some browsers keyCode is not supported. The same with which so if keyCode is not supported you need to use which and vice versa.

$(document).on("keydown", function(e) {
  const ENTER_KEY_CODE = 13;
  const ENTER_KEY = "Enter";
  var code = e.keyCode || e.which
  var key = e.key
  if (code == ENTER_KEY_CODE || key == ENTER_KEY) {
    console.log("Enter key pressed")
  }
});

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>

$(document).keydown(function (event) {
      //proper indentiation of keycode and which to be equal to 13.
    if ( (event.keyCode || event.which) === 13) {
        // Cancel the default action, if needed
        event.preventDefault();
        //call function, trigger events and everything tou want to dd . ex : Trigger the button element with a click
        $("#btnsearch").trigger('click');
    }
});

This my how I solved it. You should use return false;

$(document).on('keypress', function(e) {
    if(e.which == 13) {
        $('#sub_btn').trigger('click');
        alert('You pressed the "Enter" key somewhere');
        return false;
    }
});

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>

<form action="" method="post" id="sub_email_form">
    <div class="modal-header">
        <button type="button" class="close" id="close" data-dismiss="modal">&times;</button>
        <h4 class="modal-title">Subscribe to our Technical Analysis</h4>
    </div>
    <div class="modal-body">
        <p>Signup for our regular Technical Analysis updates to review recommendations delivered directly in your inbox.</p>
        <div class="input-group">
            <input type="email" name="sub_email" id="sub_email" class="form-control" placeholder="Enter your email" required>
        </div>
        <span id="save-error"></span>
    </div>
    <div class="modal-footer">
        <div class="input-group-append">
            <input type="submit" class="btn btn-primary sub_btn" id="sub_btn" name="sub_btn" value="Subscribe">
        </div>
    </div>
</form>

I think the simplest method would be using vanilla JavaScript:

document.onkeyup = function(event) {
   if (event.key === 13){
     alert("Enter was pressed");
   }
}

The easy way to detect whether the user has pressed Enter is to use the key number. The Enter key number is equal to 13.

To check the value of key in your device:

$("input").keypress(function (e) {
  if (e.which == 32 || (65 <= e.which && e.which <= 65 + 25)
                    || (97 <= e.which && e.which <= 97 + 25)) {
    var c = String.fromCharCode(e.which);
    $("p").append($("<span/>"))
          .children(":last")
          .append(document.createTextNode(c));
  } else if (e.which == 8) {
    // Backspace in Internet Explorer only is on keydown
    $("p").children(":last").remove();
  }
  $("div").text(e.which);
});

By pressing the Enter key, you will get result as 13. Using the key value, you can call a function or do whatever you wish:

    $(document).keypress(function(e) {
      if(e.which == 13) {
        console.log("The user pressed the Enter key");

        // The code you want to run
      }
    });

If you want to target a button once the Enter key is pressed, you can use the code:

$(document).bind('keypress', function(e) {
  if(e.which === 13) { // Return
     $('#buttonname').trigger('click');
  }
});

Here's a small example of how you can do it easily. Imagine you want to detect keystrokes from the website's body area,

$("body").keypress(function(event) {
    console.log("This key got pressed - " + event.key);
});

This will display the result in the console as "This key got pressed" + the key you pressed in the keyboard.

$(document).keyup(function(e) {
    if(e.key === 'Enter') {
        //Do the stuff
    }
});

$(function(){
  $('.modal-content').keypress(function(e){
    debugger
     var id = this.children[2].children[0].id;
       if(e.which == 13) {
         e.preventDefault();
         $("#"+id).click();
       }
   })
});

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