observeSelector
3 min
Register a callback that fires when an element is added to the DOM.
let unobserve = window.optimizelyEdge.get("utils").observeSelector("#cta", function(ctaElement) {
ctaElement.innerText = "Click me!";
unobserve();
});Parameters
Parameter | Type | Description |
|---|---|---|
selector required | string | A CSS selector indicating the element to wait for. |
callback required | function | The function that will be executed each time an element is added to the DOM that matches the selector. The first argument is the exact node that is added. |
Returns
Parameter | Type | Description |
|---|---|---|
unobserve | function | A function that can be executed to stop observing. |