Progress bars, timers and stopwatches
Comes up in: UI coding, Machine coding
This concept is being written. It gets the full five steps — explanation, predict, interview angle, practice with tests, and review cards. Here is exactly what it will cover, so you can study it elsewhere in the meantime.
What it covers
- intervals and cleanup
- drift
- pausing/resuming
- queued progress bars (start N bars, max 3 concurrent)
role="progressbar"and ARIA values
Words you will know
What you will practise
- stopwatch
- countdown timer
- queued progress bars
- traffic light (state machine)
Interview questions this answers
- How would you avoid timer drift in a stopwatch?
- Run several progress bars with at most three filling at once. How?