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+# is-interactive [![Build Status](https://travis-ci.com/sindresorhus/is-interactive.svg?branch=master)](https://travis-ci.com/sindresorhus/is-interactive)
+
+> Check if stdout or stderr is [interactive](https://unix.stackexchange.com/a/43389/7678)
+
+It checks that the stream is [TTY](https://jameshfisher.com/2017/12/09/what-is-a-tty/), not a dumb terminal, and not running in a CI.
+
+This can be useful to decide whether to present interactive UI or animations in the terminal.
+
+
+## Install
+
+```
+$ npm install is-interactive
+```
+
+
+## Usage
+
+```js
+const isInteractive = require('is-interactive');
+
+isInteractive();
+//=> true
+```
+
+
+## API
+
+### isInteractive(options?)
+
+#### options
+
+Type: `object`
+
+##### stream
+
+Type: [`stream.Writable`](https://nodejs.org/api/stream.html#stream_class_stream_writable)<br>
+Default: [`process.stdout`](https://nodejs.org/api/process.html#process_process_stdout)
+
+The stream to check.
+
+
+## FAQ
+
+#### Why are you not using [`ci-info`](https://github.com/watson/ci-info) for the CI check?
+
+It's silly to have to detect individual CIs. They should identify themselves with the `CI` environment variable, and most do just that. A manually maintained list of detections will easily get out of date. And if a package using `ci-info` doesn't update to the latest version all the time, they will not support certain CIs. It also creates unpredictability as you might assume a CI is not supported and then suddenly it gets supported and you didn't account for that. In addition, some of the manual detections are loose and might cause false-positives which could create hard-to-debug bugs.
+
+#### Why does this even exist? It's just a few lines.
+
+It's not about the number of lines, but rather discoverability and documentation. A lot of people wouldn't even know they need this. Feel free to copy-paste the code if you don't want the dependency. You might also want to read [this blog post](https://blog.sindresorhus.com/small-focused-modules-9238d977a92a).