1unique-filename 2=============== 3 4Generate a unique filename for use in temporary directories or caches. 5 6``` 7var uniqueFilename = require('unique-filename') 8 9// returns something like: /tmp/912ec803b2ce49e4a541068d495ab570 10var randomTmpfile = uniqueFilename(os.tmpdir()) 11 12// returns something like: /tmp/my-test-912ec803b2ce49e4a541068d495ab570 13var randomPrefixedTmpfile = uniqueFilename(os.tmpdir(), 'my-test') 14 15var uniqueTmpfile = uniqueFilename('/tmp', 'testing', '/my/thing/to/uniq/on') 16``` 17 18### uniqueFilename(*dir*, *fileprefix*, *uniqstr*) → String 19 20Returns the full path of a unique filename that looks like: 21`dir/prefix-7ddd44c0` 22or `dir/7ddd44c0` 23 24*dir* – The path you want the filename in. `os.tmpdir()` is a good choice for this. 25 26*fileprefix* – A string to append prior to the unique part of the filename. 27The parameter is required if *uniqstr* is also passed in but is otherwise 28optional and can be `undefined`/`null`/`''`. If present and not empty 29then this string plus a hyphen are prepended to the unique part. 30 31*uniqstr* – Optional, if not passed the unique part of the resulting 32filename will be random. If passed in it will be generated from this string 33in a reproducable way. 34