/
example.js
46 lines (39 loc) · 1.1 KB
/
example.js
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function getTempCallback(location, callback) {
callback(undefined, 78);
callback('City not found');
}
getTempCallback('Philadelphia', function(err, temp){
if(err) {
console.log('error', err)
} else {
console.log('success', temp)
}
})
function getTempPromise(location) {
return new Promise(function(resolve, reject){
setTimeout(function() {
resolve(79);
reject('City not found');
}, 1000);
})
}
getTempPromise('Philadelphia').then(function(temp){
console.log("Promise success", temp)
}, function(err){
console.log("Promise erro", err)
})
function addPromise(a, b) {
return new Promise(function(resolve, reject){
if(typeof a === 'number' && typeof b === 'number'){
resolve(a+b);
} else {
reject("something's not a number");
}
})
}
addPromise(2,8).then(function(res){
console.log(res)}, function(err) {
console.log("error func", err)});
addPromise("lala", 2).then(function(res){
console.log(res)}, function(err) {
console.log("error func", err)});