JAVASCRIPT

javascript promise example basic

const anotherPromise = new Promise((resolve, reject) => {
  setTimeout(() => {
    resolve('this is the eventual value the promise will return');
  }, 300);
});

// CONTINUATION
anotherPromise
.then(value => { console.log(value) })

simple promise

getSomethingWithPromise()
  .then(data => {/* do something with data */})
  .catch(err => {/* handle the error */})

Simplest Promise Example

let hw = await new Promise((resolve)=>{
resolve(“HELLO WORLD”);

})

console.log(hw);
 
/*basically in resolve(whatever') the whatever is returned*/
/*hw will console.log out "HELLO WORLD" */

simple promise

// jeffBuysCake is a promise
const promise = jeffBuysCake('black forest')

js promise example

function examplePromise(){
  let promiseToReturn = new Promise(function (resolve, reject) {
    let sum;
    setTimeout(function(){
      sum = 5 + 6;
      if(sum > 10) {
        resolve(sum);
      }else{
        reject('The promise has been rejected');
      }     
    }, 2000);
  });
  return promiseToReturn;
}

console.log('some piece of code');
examplePromise().then(function(result){
  console.log(result);
}).catch(function(error){
  console.log(error);
});
console.log('another piece of code');