weighted-random-file pick a weighted random file, based on it's length.
The longer the file is, the more often it will be chosen. A 4 kB file will be returned twice as often as a 2 kB file.
Returns a Promise, so it's thenable.
Install
$ npm install --save weighted-random-file
Usage
var weightedRandomFile = require("weighted-random-file");
weightedRandomFile(['one.txt', 'two.txt', 'three.txt'], __dirname); // "two.txt"
weightedRandomFile(['one.txt', 'two.txt', 'three.txt'], '/path/to/files'); // "two.txt"Parameters
- an array of relative paths
- base directory (optional, default is the location of
weighted-random-file)
Returns
A Promise of a string containing a relative path.