The Mozilla Intersection Observer API allows developers to observe changes in how a target element intersects with an ancestor element or viewport. Developers can configure a callback that will be called whenever a target intersects with either the device viewport or another specified element. This specification is still being worked on and is therefore subject to change.
The following is a list of SDKs from our SDK directory that matched your search term. Though your definition of an SDK may differ, in our world, we define SDKs as platform- specific tools for consuming existing APIs of the sort we list in our API directory. For example, the Ruby SDK for consuming the Twitter Ads API. If you think an SDK, API, or other asset is missing from our directory, be sure to check our guidelines for making contributions to ProgrammableWeb.