Event which codes

No code Code value of the Physical Key. No key The actual value of the key pressed. No charCode Returns the Unicode value. This has been deprecated and we should use the key property instead. Yes keyCode Returns the neumeric code of the pressed value. Yes which Returns the neumeric code of the pressed value.

Yes The last three properties are deprecated and you should use the key property instead. Modifier Keys The modifier keys are the special keys on your keyboard that modify the default behavior of the other keys. Key Combinations We can combine multiple keys and perform actions based on the key combinations. The code snippet below shows how to combine the Control and z key to define an action: document. Key Name event. Hoever the event. The event. There are primarily three key events, keydown , keypress , and keyup.

We should use the keydown event type as much as possible as it satisfies most of the use-cases. The keypress event type has been deprecated.

Use event. If you have to support an older browser, use appropriate fallback for key detection. We can combine multiple keys and perform operations. The virtual keyboard supports these events as long as the layout and functions are similar to the standard keyboard. Returns the Unicode value. Returns the neumeric code of the pressed value. Also FF provides the code value as, VolumeMute. Also FF provides the code value as, VolumeDown.

Also FF provides the code value as, VolumeUp. Also FF provides the code value as, MediaSelect. Also FF provides the code value as, LaunchApp1.

Also FF provides the code value as, LaunchApp2. If the inputting character can be inputted with the US keyboard layout, they use the keyCode value on the US keyboard layout. Starting in Firefox 15 Firefox See the following rules for details:. Starting in Firefox 60 Firefox Warning: The purpose of these new additional rules is for making users whose keyboard layouts map unicode characters to punctuation keys in a US keyboard layout can use web applications which support Firefox only with ASCII-capable keyboard layouts or just with a US keyboard layout.

Otherwise, the newly mapped keyCode values may be conflict with other keys. For example, if the active keyboard layout is Russian, the keyCode value of both the "Period" key and "Slash" key are KeyEvent. If you need to distinguish those keys but you don't want to support all keyboard layouts in the world by yourself, you should probably use KeyboardEvent.

The value of keyup event is 0x00 0. These keyCode values are the same as the Insert key's keyCode values. Chrome and Safari map them to the same keyCode values as Mac's keys. Firefox sets for them the same keyCode values as the PC's keys. If the keys cause proper keysyms, these values must be same as IE.

Button labels may be defined on the Response panel. Event codes are strings and so can contain whatever information you wish. Often, the event code for stimuli will contain information that describes multiple properties of the stimuli. It is often convenient to have the information contained in an event code split into multiple columns in the logfile event table.

In addition, you may want to use a set definition file to process the data based on these properties.

The type can be either "string" or "number". Properties: constructor global ignoreCase lastIndex multiline source Methods: compile exec test toString. Report Error. Your message has been sent to W3Schools. W3Schools is optimized for learning and training. Examples might be simplified to improve reading and learning.