promises explained javascript code example
Example 1: javascript promise
var promise = new Promise(function(resolve, reject) {
if () {
resolve("Stuff worked!");
}
else {
reject(Error("It broke"));
}
});
promise.then(
function(result) { },
function(error) { }
);
Example 2: promise javascript
const promiseA = new Promise( (resolutionFunc,rejectionFunc) => {
resolutionFunc(777);
});
promiseA.then( (val) => console.log("asynchronous logging has val:",val) );
console.log("immediate logging");
Example 3: making promises in js
getData()
.then(data => console.log(data))
.catch(error => console.log(error));