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Document the return value of ensureDir #359

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Document the return value of ensureDir #359

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15 changes: 15 additions & 0 deletions docs/ensureDir.md
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Expand Up @@ -18,3 +18,18 @@ fs.ensureDir(dir, function (err) {
// dir has now been created, including the directory it is to be placed in
})
```

---

The callback receives a second argument, containing the path to the first directory that was created in the process. If no directories were made, this will be `null`.
```js
var fs = require('fs-extra')

// Let's assume that /var/www exists

var dir = '/var/www/this/path/does/not/exist'
fs.ensureDir(dir, function (err, created) {
console.log(created) // => /var/www/this
// second argument contains the first directory in the path that did not exist before
})
```