W3cubDocs

/Web APIs

KeyboardEvent: charCode property

Deprecated: This feature is no longer recommended. Though some browsers might still support it, it may have already been removed from the relevant web standards, may be in the process of being dropped, or may only be kept for compatibility purposes. Avoid using it, and update existing code if possible; see the compatibility table at the bottom of this page to guide your decision. Be aware that this feature may cease to work at any time.

The charCode read-only property of the KeyboardEvent interface returns the Unicode value of a character key pressed during a keypress event.

Warning: Do not use this property, as it is deprecated. Instead, get the Unicode value of the character using the key property.

Value

A number that represents the Unicode value of the character key that was pressed.

Examples

HTML

html

<p>Type anything into the input box below to log a <code>charCode</code>.</p>
<input type="text" />
<p id="log"></p>

JavaScript

const input = document.querySelector("input");
const log = document.querySelector("#log");

input.addEventListener("keypress", (e) => {
  log.innerText = `Key pressed: ${String.fromCharCode(e.charCode)}\ncharCode: ${
    e.charCode
  }`;
});

Result

Notes

In a keypress event, the Unicode value of the key pressed is stored in either the keyCode or charCode property, but never both. If the key pressed generates a character (e.g., 'a'), charCode is set to the code of that character; charCode respects the letter case (in other words, charCode takes into account whether the shift key is held down). Otherwise, the code of the pressed key is stored in keyCode.
When one or more modifier keys are pressed, there are some complex rules for charCode. See Gecko Keypress Event for details.
charCode is never set in the keydown and keyup events. In these cases, keyCode is set instead.
To get the code of the key regardless of whether it was stored in keyCode or charCode, query the which property.
Characters entered through an IME do not register through keyCode or charCode.
For a list of the charCode values associated with particular keys, run Example 7: Displaying Event Object Properties and view the resulting HTML table.

Specifications

Specification
UI Events # dom-keyboardevent-charcode

Browser compatibility

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	WebView Android	Chrome Android	Firefox for Android	Opera Android	Safari on IOS	Samsung Internet
`charCode`	1	12	1.5	9	12.1	1.2	≤37	18	4	12.1	1	1.0

© 2005–2023 MDN contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/KeyboardEvent/charCode