Prevent form submission on Enter key press

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I have a form with two text boxes, one select drop down and one radio button. When the enter key is pressed, I want

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青春惊慌失措

2020-11-22 04:58
So maybe the best solution to cover as many browsers as possible and be future proof would be
```
if (event.which === 13 || event.keyCode === 13 || event.key === "Enter")
```
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谎友^

2020-11-22 05:07

A much simpler and effective way from my perspective should be :

function onPress_ENTER()
{
        var keyPressed = event.keyCode || event.which;

        //if ENTER is pressed
        if(keyPressed==13)
        {
            alert('enter pressed');
            keyPressed=null;
        }
        else
        {
            return false;
        }
}

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陌清茗

2020-11-22 05:08

Use both event.which and event.keyCode:

function (event) {
    if (event.which == 13 || event.keyCode == 13) {
        //code to execute here
        return false;
    }
    return true;
};

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感动是毒

2020-11-22 05:08

Here is how you can do it using JavaScript:

//in your **popup.js** file just use this function 

    var input = document.getElementById("textSearch");
    input.addEventListener("keyup", function(event) {
        event.preventDefault();
        if (event.keyCode === 13) {
            alert("yes it works,I'm happy ");
        }
    });

<!--Let's say this is your html file-->
 <!DOCTYPE html>
    <html>
      <body style="width: 500px">
        <input placeholder="Enter the text and press enter" type="text" id="textSearch"/> 
          <script type="text/javascript" src="public/js/popup.js"></script>
      </body>
    </html>

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情歌与酒

2020-11-22 05:10
```
if(characterCode == 13)
{
    return false; // returning false will prevent the event from bubbling up.
}
else
{
    return true;
}
```
Ok, so imagine you have the following textbox in a form:
```
<input id="scriptBox" type="text" onkeypress="return runScript(event)" />
```
In order to run some "user defined" script from this text box when the enter key is pressed, and not have it submit the form, here is some sample code. Please note that this function doesn't do any error checking and most likely will only work in IE. To do this right you need a more robust solution, but you will get the general idea.
```
function runScript(e) {
    //See notes about 'which' and 'key'
    if (e.keyCode == 13) {
        var tb = document.getElementById("scriptBox");
        eval(tb.value);
        return false;
    }
}
```
returning the value of the function will alert the event handler not to bubble the event any further, and will prevent the keypress event from being handled further.

NOTE:

It's been pointed out that keyCode is now deprecated. The next best alternative which has also been deprecated.

Unfortunately the favored standard key, which is widely supported by modern browsers, has some dodgy behavior in IE and Edge. Anything older than IE11 would still need a polyfill.

Furthermore, while the deprecated warning is quite ominous about keyCode and which, removing those would represent a massive breaking change to untold numbers of legacy websites. For that reason, it is unlikely they are going anywhere anytime soon.
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遇见更好的自我

2020-11-22 05:10

A jQuery solution.

I came here looking for a way to delay the form submission until after the blur event on the text input had been fired.

$(selector).keyup(function(e){
  /*
   * Delay the enter key form submit till after the hidden
   * input is updated.
   */

  // No need to do anything if it's not the enter key
  // Also only e.which is needed as this is the jQuery event object.
  if (e.which !== 13) {
       return;
  }

  // Prevent form submit
  e.preventDefault();

  // Trigger the blur event.
  this.blur();

  // Submit the form.
  $(e.target).closest('form').submit();
});

Would be nice to get a more general version that fired all the delayed events rather than just the form submit.

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Prevent form submission on Enter key press

NOTE: