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README.md

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<h1 align="center"><em>sub</em>script</h1>
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<p align="center">Expression parser & evaluator</p>
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<p align="center">Modular expression parser & evaluator</p>
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<div align="center">
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[![build](https://github.com/dy/subscript/actions/workflows/node.js.yml/badge.svg)](https://github.com/dy/subscript/actions/workflows/node.js.yml) [![npm](https://img.shields.io/npm/v/subscript)](http://npmjs.org/subscript) [![size](https://img.shields.io/bundlephobia/minzip/subscript?label=size)](https://bundlephobia.com/package/subscript) [![microjs](https://img.shields.io/badge/µjs-subscript-darkslateblue)](http://microjs.com/#subscript) <!--[![demo](https://img.shields.io/badge/play-%F0%9F%9A%80-white)](https://dy.github.io/subscript/)-->
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fn({ a: 1, b: 3 }) // 7
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```
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* **Fast** — pratt parser engine, see [benchmarks](#performance)
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* **Portable** — universal expression format, see [spec](./spec.md)
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* **Extensible** — pluggable syntax, see [playground](https://dy.github.io/subscript/)
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* **Modular** — 40+ syntax features for building DSL, see [playground](https://dy.github.io/subscript/)
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* **Universal** — language-agnostic minimal syntax tree, see [spec](./spec.md)
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* **Fast** — single-pass Pratt parser, see [benchmarks](#performance)
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* **Small**~2KB core, runs in browser/node
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* **Safe** — sandboxed, no prototype access
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* **Metacircular** — parses and compiles itself
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* **Safe** — sandboxed, blocks `__proto__`, `constructor`
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## Presets
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package.json

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{
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"name": "subscript",
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"version": "10.2.0",
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"description": "Tiny expression parser & evaluator",
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"description": "Modular expression parser & evaluator",
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"main": "subscript.js",
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"module": "subscript.js",
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"browser": "subscript.js",
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"url": "git+https://github.com/dy/subscript.git"
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},
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"keywords": [
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"jexl",
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"jsep",
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"parser",
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"expression",
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"language",
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"dsl",
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"syntax",
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"modular",
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"extensible",
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"pratt",
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"evaluator",
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"parser",
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"evaluation",
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"math",
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"arithmetic",
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"compiler",
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"ast",
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"justin",
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"eval",
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"math-eval",
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"math-evaluator",
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"math-expression-evaluator",
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"calculation",
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"jessie",
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"jessica",
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"eval",
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"dsl",
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"json",
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"calculator",
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"calc",
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"math.js",
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"mathjs",
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"math-codegen",
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"math-parser",
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"jsep",
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"jexl",
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"sandboxed",
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"safe-eval",
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"formula",
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"operator",
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"overload"
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"template"
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],
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"author": "Dmitry Iv.",
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"license": "ISC",

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