Promise Anti-patterns – Tao of Code
Promises are very simple once you get your head around them, but there are a few gotchas that can leave you with your head scratching. Here are a few that got me. Nested Promises You get a whole bundle of promises nested in eachother: loadSomething().then(function(something) { loadAnotherthing().then(function(another) { DoSomethingOnThem(something, another); }); }); The reason you’ve done this is
The Revealing Constructor Pattern
I want to document an interesting pattern we’ve seen emerge in some recent web platform specs, including promises and streams. I’m calling it the revealing constructor pattern. The Promises Example Let’s take the case of promises first, since that may be familiar. You can construct a new promise like so: var p = new Promise(function (resolve, reject) { // Use `resolve` to resolve `p`. // Use `reje
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