# Performance — Sass / SCSS

Source: https://www.geekswithgeeks.com/en/sass/sass-19

> Use Performance as a clear part of Sass / SCSS.

## The essential idea

**Performance** is a practical part of Sass / SCSS. Begin with the problem it solves, then identify the input, transformation, and result. This prevents syntax from becoming disconnected facts.

## Try a small example

Make one controlled change, run the example, and compare the result to your prediction.

```bash
# Explore Performance one focused step at a time
value=0
echo "$value"
```

Output:

```
0
```

## Common pitfall

Do not learn **Performance** by copying a finished answer. Reduce it to a small example and use the result to test your explanation.

Quick check

**Quiz:** What is a strong first practice for Performance?

- [x] Run one focused example.
- [ ] Memorize without testing.
- [ ] Ignore feedback.

*Answer:* Run one focused example.. Focused experiments show cause and effect.