The KeyboardEvent.repeat read-only property returns a Boolean that is true if the key is being held down such that it is automatically repeating. Syntax var repeat = event.repeat; Specifications Specification Status Comment Document Object Model (DOM) Level 3 Events SpecificationThe definition of 'KeyboardEvent.repeat' in that specification. Working Draft Initial definition. Browser compatibility Desktop Mobile Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit) Basic support ? 28 (28) ? ? ? Feature Android Firefox Mobile (Gecko) IE Phone Opera Mobile Safari Mobile Basic support ? 28.0 (28) ? ? ?