package.json

{
  "name": "test-bycrypt",
  "version": "1.0.0",
  "main": "index.js",
  "license": "MIT",
  "private": null,
  "dependencies": {
    "bcrypt": "^1.0.3"
  }
}

test-bcrypt.js

var bcrypt = require('bcrypt');

bcrypt.genSalt(10, function(err, salt) {
    bcrypt.hash("B4c0/\/", salt, function(err, hash) {

        console.log(hash);

        // To check a password:   
        bcrypt.compare("B4c0/\/", hash, function(err, res) {
            // res == true
            console.log("equal")
            console.log(res);
        });

        bcrypt.compare("not_bacon", hash, function(err, res) {
            // res == false
            console.log("not equal");
            console.log(res);
        });
    });
});

// Auto-gen a salt and hash:
bcrypt.hash('bacon', 8, function(err, hash) {
    console.log(hash);
});