# node-expr

> Javascript expression evaluator

Latest version **0.0.2** (published 2014-06-05) · MIT license · 0 weekly downloads

## Install

```sh
npm install node-expr
pnpm add node-expr
yarn add node-expr
bun add node-expr
```

## Health

**Score 15/100 (F)** — status: abandoned.

Positive: no vulnerabilities.

Warnings: low downloads; no types; no esm support; pre 1.0.

Negative: abandoned; low maintenance score.

## Facts

| | |
|---|---|
| Version | 0.0.2 |
| Published | 2014-06-05 |
| First published | 2014-06-05 |
| Weekly downloads | 0 |
| License | MIT |
| TypeScript types | none |
| Module format | CommonJS |
| Dependencies | 0 |
| Known vulnerabilities | 0 |
| Install scripts | no |
| GitHub stars | 4 |
| Author | Alantu |
| Maintainers | vcalvello |
| Keywords | eval, evaluate, expressions |

## Links

- npm: https://www.npmjs.com/package/node-expr
- Repository: https://github.com/alantu/expr
- Issues: https://github.com/alantu/expr/issues
- npm.io page: https://npm.io/package/node-expr

## Recent versions

- 0.0.2 (latest) — 2014-06-05

## README

expr
====

[![Build Status](https://travis-ci.org/alantu/expr.svg?branch=master)](http://travis-ci.org/alantu/expr)

**expr** is a simple and secure Javascript expression evaluator.
Useful for evaluating dinamically generated expressions.


Usage
-----

Evaluating an expression against objects

```javascript

var str = "this.age > 30 && this.gender === 'female'";

var expr = new expr.Expr(str);

expr.test({ age: 15, gender: 'male' });
// => false

expr.test({ age: 32, gender: 'female' });
// => true

```

Evaluating an object against expressions

```javascript

var ctx = new expr.Ctx({ age: 15, gender: 'male' });

ctx.match("this.age > 30 && this.gender === 'female'");
// => false

ctx.match("this.age > 10 && this.gender === 'male'");
// => true

```

---
_Source: https://npm.io/package/node-expr · Machine-readable twin of the npm.io package page. Health data is recomputed on every publish._