US EditionJavaScript promises: 4 gotchas and how to avoid them
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JavaScript promises: 4 gotchas and how to avoid them
I’ve previously covered the basics of JavaScript promises and how to use the async/await keywords to simplify your existing asynchronous code. This article is a more advanced look at JavaScript promises. We’ll explore four common ways promises trip up developers and tricks for resolving them. Gotcha #1: Promise handlers return promises If you’re returning information from a then or catch handler, it will always be wrapped in a promise, if it isn…
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