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# is-finite [](https://travis-ci.org/sindresorhus/is-finite) > ES2015 [`Number.isFinite()`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/isFinite) [ponyfill](https://ponyfill.com) ## Install ```sh $ npm install --save is-finite ``` ## Usage ```js var numIsFinite = require('is-finite'); numIsFinite(4); //=> true numIsFinite(Infinity); //=> false ``` ## License MIT © [Sindre Sorhus](http://sindresorhus.com)