Resolving Muliple Promise Node-JS - angularjs

Question

I have array of promises.
var defered = q.defer();
// promises is a array which will have different promises
var promises = [];
q.all(promises).then(function(response){
// SUSSECCFULLY RESOLVED ALL PROMISE THEN EXECUTION COME HERE
}, function(error){
// IF ANY PROMISE FAILED THEN EXECUTION COME HERE
});
I want to process all promises whether they fail or they resolved.

Answer 1

Use case 1:
You want to handle errors to be handled separately and success on all not called:
var myApp = angular.module('myApp', []);
function MyCtrl($scope, $q, $timeout) {
function prOne(){
var d = $q.defer();
setTimeout(function(){
d.reject();
}, 100);
return d.promise;
}
function prTwo(){
var d = $q.defer();
setTimeout(function(){
d.resolve();
}, 100);
return d.promise;
}
$q.all([prOne().catch(function(){ console.log('fail for one'); return $q.reject() }), prTwo()]).then(function(){
console.log('success');
return $q.resolve();
}).catch(function(){
console.log('error');
});;
}
myApp.controller('MyCtrl', MyCtrl);
Use case 2:
You want to handle errors to be handled separately and success on all called anyway:
var myApp = angular.module('myApp', []);
function MyCtrl($scope, $q, $timeout) {
function prOne(){
var d = $q.defer();
setTimeout(function(){
d.reject();
}, 100);
return d.promise;
}
function prTwo(){
var d = $q.defer();
setTimeout(function(){
d.resolve();
}, 100);
return d.promise;
}
$q.all([prOne().catch(function(){ console.log('fail for one'); return $q.resolve() }), prTwo()]).then(function(){
console.log('success');
return $q.resolve();
}).catch(function(){
console.log('error');
});;
}
myApp.controller('MyCtrl', MyCtrl);