Inline, On-Blur, or On-Submit: Timing Matters
Validate at moments that do not overwhelm.
When You Validate Counts
The same error message can help or annoy depending on when it appears. Timing is its own accessibility decision. ⏱️
On-Submit Is the Baseline
Checking everything on submit is predictable and never interrupts. It is the safest default for almost every form.
All lessons in this course
- Tying Errors to Fields With aria-describedby
- Marking Invalid State With aria-invalid
- Moving Focus to the First Error
- Inline, On-Blur, or On-Submit: Timing Matters