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66 lines
1.2 KiB
Markdown
66 lines
1.2 KiB
Markdown
# log-update [](https://travis-ci.org/sindresorhus/log-update)
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> Log by overwriting the previous output in the terminal.
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> Useful for rendering progress bars, animations, etc.
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## Install
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```
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$ npm install --save log-update
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```
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## Usage
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```js
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var logUpdate = require('log-update');
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var i = 0;
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var frames = ['-', '\\', '|', '/'];
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setInterval(function () {
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var frame = frames[i++ % frames.length];
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logUpdate('\n' + ' ♥♥\n ' + frame + ' unicorns ' + frame + '\n ♥♥');
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}, 100);
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```
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## API
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### logUpdate(text, ...)
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Log to stdout.
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### logUpdate.clear()
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Clear the logged output.
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### logUpdate.done()
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Persist the logged output.
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Useful if you want to start a new log session below the current one.
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### logUpdate.stderr(text, ...)
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Log to stderr.
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### logUpdate.stderr.clear()
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### logUpdate.stderr.done()
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### logUpdate.create(stream)
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Get a `logUpdate` method that logs to the specified stream.
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## Examples
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- [speed-test](https://github.com/sindresorhus/speed-test) - Uses this module to render a spinner
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## License
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MIT © [Sindre Sorhus](http://sindresorhus.com)
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