Generate a random key.

$random_key = str_shuffle('abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789'); // 62 characters
$random_key = substr($random_key, 0, 10); // 10 characters

Cherry pick

Example:

CAUTION : At this day (2017-10-12), Drupal commerce is very young. Therefor you can start the development of your e-commerce site but you may have bugs and security issues.

Example 1 (for drupal 7)

Step 1. Add file brows

Create a simple js file in your module directory (called yourModuleName.js) and enter the following Javascript.