# reduce-css-calc

**Repository Path**: mirrors_MoOx/reduce-css-calc

## Basic Information

- **Project Name**: reduce-css-calc
- **Description**: Reduce CSS calc() function at the maximum
- **Primary Language**: Unknown
- **License**: MIT
- **Default Branch**: main
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2021-05-27
- **Last Updated**: 2026-01-11

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# reduce-css-calc

[![Build Status](https://github.com/MoOx/reduce-css-calc/workflows/Build/badge.svg)](https://github.com/MoOx/reduce-css-calc/actions)

> Reduce CSS calc() function to the maximum.

Particularly useful for packages like
[rework-calc](https://github.com/reworkcss/rework-calc) or
[postcss-calc](https://github.com/postcss/postcss-calc).

## Installation

```console
npm install reduce-css-calc
```

## Usage

### `var reducedString = reduceCSSCalc(string, precision)`

```javascript
var reduceCSSCalc = require("reduce-css-calc");

reduceCSSCalc("calc(1 + 1)");
// 2

reduceCSSCalc("calc((6 / 2) - (4 * 2) + 1)");
// -4

reduceCSSCalc("calc(1/3)");
// 0.33333

reduceCSSCalc("calc(1/3)", 10);
// 0.3333333333

reduceCSSCalc("calc(3rem * 2 - 1rem)");
// 5rem

reduceCSSCalc("calc(2 * 50%)");
// 100%

reduceCSSCalc("calc(120% * 50%)");
// 60%

reduceCSSCalc("a calc(1 + 1) b calc(1 - 1) c");
// a 2 b 0 c

reduceCSSCalc("calc(calc(calc(1rem * 0.75) * 1.5) - 1rem)");
// 0.125rem

reduceCSSCalc("calc(calc(calc(1rem * 0.75) * 1.5) - 1px)");
// calc(1.125rem - 1px)

reduceCSSCalc("-moz-calc(100px / 2)");
// 50px

reduceCSSCalc("-moz-calc(50% - 2em)");
// -moz-calc(50% - 2em)
```

See [unit tests](src/__tests__/index.js) for others examples.

---

## Contributing

Work on a branch, install dev-dependencies, respect coding style & run tests
before submitting a bug fix or a feature.

```console
git clone https://github.com/MoOx/reduce-css-calc.git
git checkout -b patch-1
npm install
npm test
```

## [Changelog](CHANGELOG.md)

## [License](LICENSE-MIT)

## Security contact information

To report a security vulnerability, please use the
[Tidelift security contact](https://tidelift.com/security). Tidelift will
coordinate the fix and disclosure.