# web3-utils [![NPM Package][npm-image]][npm-url] This is a sub-package of [web3.js][repo]. This contains useful utility functions for Dapp developers. Please read the [documentation][docs] for more. ## Installation You can install the package either using [NPM](https://www.npmjs.com/package/web3-utils) or using [Yarn](https://yarnpkg.com/package/web3-utils) ### Using NPM ```bash npm install web3-utils ``` ### Using Yarn ```bash yarn add web3-utils ``` ## Usage ```js const Web3Utils = require('web3-utils'); console.log(Web3Utils); { sha3: function(){}, soliditySha3: function(){}, isAddress: function(){}, ... } ``` ## Types All the TypeScript typings are placed in the `types` folder. [docs]: http://web3js.readthedocs.io/en/1.0/ [repo]: https://github.com/ethereum/web3.js [npm-image]: https://img.shields.io/npm/v/web3-utils.svg [npm-url]: https://npmjs.org/package/web3-utils