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Angular Progress Bar (0–100 with Threshold Colors)

By FrontendAtlas Editorial · Updated Jan 30, 2026

Challenge summary

Build an Angular progress bar for values 0–100 with +10/−10 controls. Clamp the value, show the percentage, and change the fill color based on thresholds (red/orange/green) to reflect status and urgency.

What you'll practice

  • Use a standalone Angular component as the root component.
  • Render a progress bar where the fill represents a progress value from 0 to 100.
  • Provide "-10%" and "+10%" buttons to decrease/increase progress by 10.
  • Display the current progress percentage (e.g., "40%").
  • Angular focus: use [ngStyle]/[ngClass] to map thresholds to styles.

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Free related practice

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