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Non-standard
This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.
The UIEvent.isChar read-only property returns a Boolean indicating whether the event produced a key character or not.
Some key combos may raise events but not produce any character (example: ctrlalt?). When this is the case, isChar returns false. It is used when event handlers need to do something like echo the input on the screen.
Syntax
bool = event.isChar;
Example
if (e.isChar) {
console.log(e.type);
}
Specification
This property is not part of any specification.