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- # log-update [](https://travis-ci.org/sindresorhus/log-update)
- > Log by overwriting the previous output in the terminal.<br>
- > Useful for rendering progress bars, animations, etc.
- 
- ## Install
- ```
- $ npm install log-update
- ```
- ## Usage
- ```js
- const logUpdate = require('log-update');
- const frames = ['-', '\\', '|', '/'];
- let i = 0;
- setInterval(() => {
- const frame = frames[i = ++i % frames.length];
- logUpdate(
- `
- ♥♥
- ${frame} unicorns ${frame}
- ♥♥
- `
- );
- }, 80);
- ```
- ## API
- ### logUpdate(text…)
- Log to stdout.
- ### logUpdate.clear()
- Clear the logged output.
- ### logUpdate.done()
- Persist the logged output.<br>
- Useful if you want to start a new log session below the current one.
- ### logUpdate.stderr(text…)
- Log to stderr.
- ### logUpdate.stderr.clear()
- ### logUpdate.stderr.done()
- ### logUpdate.create(stream, options?)
- Get a `logUpdate` method that logs to the specified stream.
- #### options
- Type: `object`
- ##### showCursor
- Type: `boolean`\
- Default: `false`
- Show the cursor. This can be useful when a CLI accepts input from a user.
- ```js
- const logUpdate = require('log-update');
- // Write output but don't hide the cursor
- const log = logUpdate.create(process.stdout, {
- showCursor: true
- });
- ```
- ## Examples
- - [listr](https://github.com/SamVerschueren/listr) - Uses this module to render an interactive task list
- - [ora](https://github.com/sindresorhus/ora) - Uses this module to render awesome spinners
- - [speed-test](https://github.com/sindresorhus/speed-test) - Uses this module to render a [spinner](https://github.com/sindresorhus/elegant-spinner)
- ---
- <div align="center">
- <b>
- <a href="https://tidelift.com/subscription/pkg/npm-log-update?utm_source=npm-log-update&utm_medium=referral&utm_campaign=readme">Get professional support for this package with a Tidelift subscription</a>
- </b>
- <br>
- <sub>
- Tidelift helps make open source sustainable for maintainers while giving companies<br>assurances about security, maintenance, and licensing for their dependencies.
- </sub>
- </div>
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