Fading Coder

How Promise.all Works Promise.all takes an array of Promise instances and returns a new Promise. When all input promises resolve successfully, the returned promise resolves with an array of results in the same order as the inputs. If any single promise rejects, the entire operation fails immediately...

Example 1 Key Concept: A Promise can only change its state once const myPromise = new Promise((fulfill, reject) => { reject(); fulfill(); }); myPromise.then( () => console.log('Success'), () => console.log('Failure') ); Output: Failure Example 2 Key Concept: resolve() and reject() do not te...