How do you make a React progress bar accessible?
Add role='progressbar', aria-valuenow={Math.round(percent)}, aria-valuemin={0}, aria-valuemax={100}. Update aria-valuenow when the value changes. This makes the progress bar work with screen readers.
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More FAQs in Progress Bar Component in React
Create a functional component with props (value, max, color, height, showLabel). Calculate percent = Math.max(0, Math.min(100, (value / max) * 100)). Set the fill width to percent%. Add CSS transition. Include ARIA attributes for accessibility.
Use useState for the value and useEffect with setInterval. setValue(v => v + 1) every 50ms. Clear the interval when v >= 100. Return () => clearInterval(interval) from useEffect for cleanup.
Accept props: value (current), max (default 100), color (optional override), height (default 20), showLabel (default true). Calculate percentage internally. Default color based on progress if not provided. This makes the component flexible for different use cases.
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