The timer fires `TimerTick()` every half second. The first thing this function does is check if `isRendered` is `true`, and ends the function. Since we don't want the renderer to do anything if less than half a second has passed since the last `KeyDown` event, the function next checks to make sure at least half a second has passed since the value of `lastKeyUp`. Finally, if the function renders output, `isRendered` is set to true, and will be reset to `false` the next keypress detected by the Monaco control.
The timer fires `TimerTick()` every half second. The first thing this function does is check if `isRendered` is `true`, and if so, ends the function. Since we don't want the renderer to do anything if less than half a second has passed since the last `KeyDown` event, the function next checks to make sure at least half a second has passed since the value of `lastKeyUp`. Finally, if the function renders output, `isRendered` is set to true, and will be reset to `false` on the next keypress detected by the Monaco control.