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Showing results for tags 'promise'.
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So asynchronous programming is something quite difficult to do in JavaScript, but since we now have Promises and async/await, it's becoming increasingly less complicated. Plus there is no need for "callback hell". So I will assume you understand what Promise.all() is and why it can sometimes be...
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Check if an image actually resolves to a successful HTTP status code e.g. 200 (OK). imageExists returns a promise, so make sure the browser you're using supports promises e.g. Chrome. If not, then you can look at using a polyfill (https://github.com/components/es6-promise) or if you're feeling adven...
