Wrap Optimize APIs in .ready()

JavaScript APIs in Optimize must be wrapped in a .ready() callback to run properly.

Optimize JavaScript APIs won’t work reliably unless they’re wrapped in a .ready() callback. This callback waits for the snippet to load before running your code — preventing errors and race conditions.

Requirements for using APIs

• The Optimize snippet must be loaded on on the page before calling APIs
• All API calls must be wrapped in intellimize.ready() blocks

intellimize.ready(function() {
  // Your API calls go here
});

Options for using multiple APIs

Option 1: Combine multiple calls in a single callback — efficient and recommended if calls are logically related

// Multiple APIs in one callback
intellimize.ready(function() {
  intellimize.setAttributes(scope, attributes);
  intellimize.onVariationRecorded(success, error);
});

Option 2: Split calls across multiple callbacks — useful if you want to intersperse them with other page logic

// Multiple callbacks
intellimize.ready(function() {
  intellimize.setAttributes(scope, attributes);
});

intellimize.ready(function() {
  intellimize.onVariationRecorded(success, error);
});

Callback registration order

Each ready() block is registered in order. They don’t overwrite each other and will all run when the snippet is ready.