541 B
541 B
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Promise Reject |
Promise Reject
A Promise.reject
function returns an error condition to the calling function. It takes a single parameter, an Error object or value, as the reason for rejection.
Chaining a catch function at the end of a Promise caller will allow you to catch the error condition.
promiseCallingFunction(paramList)
.then( ... )
...
.then( ... )
.catch( function(err) { // catch function
/*
* this is where you can access the reason for the rejection
*/
});