We can extend Selenium IDE by adding customized actions, assertions and locator-strategies. It is done with the help of JavaScript by adding methods to the Selenium object prototype. On start-up, Selenium will automatically look through the methods on these prototypes, using name patterns to recognize which ones are actions, assertions, and locators.

Let us add a ‘while’ Loop in Selenium IDE with the help of JavaScript.

Step 1. Open Firefox Browser and navigate to https://github.com/darrenderidder/sideflow/blob/master/sideflow.js and copy the script and place save it as ‘sideflow.js’ in your local folder as shown below.

Step 2.  Now open the Selenium IDE and Click on  Options > Options as shown below.

Step 3. Click the Browse button under Selenium IDE Options popup and point to the js file that we have saved in Step 1. Click Ok button.

Step 4. Restart Selenium IDE.

Step 5. Now you will have access to a few more commands such as Label, While etc.

Step 6. Now we will be able to create a While loop within Selenium IDE and it will execute as shown below.