Promisesallow errors to be passed down the chain and handled in one common placewithout having to put in layers of manual error handling. Promise objects are used to perform asynchronous functions. From the 1st line of the MDN docs: The Promise object is used for asynchronous computations. Why...
Asynchronous Javascript allows you to execute operations without waiting for the processing thread to become free. This helps prevent your application from becoming unresponsive when executing long-running operations. For more information about asynchronous Javascript, see the MDN web documentation onAsynchron...
In this article I will describe how the ES2017 async functions are essentially a play between two older JavaScript features: generators and promises, both of which were added earlier to the language in the ES2016 specification. Companies Mentioned Coin Mentioned In this article I will describe how...
Getting binary data in legacy browsers needs a trick, as we can read it onMDN. In qwest, that's how we could handle it : qwest.get('example.com/file',null,null,function(xhr){xhr.overrideMimeType('text\/plain; charset=x-user-defined');}).then(function(response){// response is now...
Useawaitbefore both thehasNext()andnext()method calls to ensure that you are operating on the correct return values as demonstrated in the following code: asyncfunctionrun(){ ... constcursor=collection.find(); while(awaitcursor.hasNext()){ ...