angular promise all code example

Example 1: promise all

Promise.all([Promise1, Promise2, Promise3])
 .then(result) => {
   console.log(result)
 })
 .catch(error => console.log(`Error in promises ${error}`))

Example 2: Promise.all

const promise1 = Promise.resolve(3);
const promise2 = 42;
const promise3 = new Promise(function(resolve, reject) {
  setTimeout(resolve, 100, 'foo');
});

Promise.all([promise1, promise2, promise3]).then(function(values) {
  console.log(values);
});
// expected output: Array [3, 42, "foo"]

Example 3: use promise in angular 8

private fetchData(){
    const promise = this.httpClient.get(this.apiUrl).toPromise();
    console.log(promise);  
    promise.then((data)=>{
      console.log("Promise resolved with: " + JSON.stringify(data));
    }, (error)=>{
      console.log("Promise rejected with " + JSON.stringify(error));
    })
  }

Example 4: use promise in angular 8

private fetchData(){
    const promise = this.httpClient.get(this.apiUrl).toPromise();
    console.log(promise);       
  }