Leaflet.org

As more of the JavaScript developers write becomes asynchronous, it’s only natural to need to wait for conditions to be met. This is especially true in a world with asynchronous testing of conditions which don’t provide an explicit await. I’ve written about waitForever, waitForTime, and JavaScript Polling in the past, but I wanted to have a more modern way of awaiting a given state. Let’s have a look at this super useful waitFor function! waitFor is an async function that allows developers to provide a condition function, polling interval (in milliseconds), and optional timeout (in milliseconds). // Polls every 50 milliseconds for a given condition const waitFor = async... more →