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Document enable() (#517)
Document enable, and help to avoid pitfall of #425
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abenhamdine authored and TooTallNate committed Nov 8, 2017
1 parent 7116906 commit ab5083f68a7e4c1ab474ff06cd5995d706abf143
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@@ -248,6 +248,41 @@ error('now goes to stdout via console.info');
log('still goes to stdout, but via console.info now');
```

## Set dynamically

You can also enable debug dynamically by calling the `enable()` method :

```js
let debug = require('debug');
console.log(1, debug.enabled('test'));
debug.enable('test');
console.log(2, debug.enabled('test'));
debug.disable();
console.log(3, debug.enabled('test'));
```

print :
```
1 false
2 true
3 false
```

Usage :
`enable(namespaces)`
`namespaces` can include modes separated by a colon and wildcards.

Note that calling `enable()` completely overrides previously set DEBUG variable :

```
$ DEBUG=foo node -e 'var dbg = require("debug"); dbg.enable("bar"); console.log(dbg.enabled("foo"))'
=> false
```

## Checking whether a debug target is enabled

After you've created a debug instance, you can determine whether or not it is

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