“Javascript Promise” Respostas de código

Javascript Destank Promise

function doSomething() {
  return new Promise((resolve, reject) => {
    console.log("It is done.");
    // Succeed half of the time.
    if (Math.random() > .5) {
      resolve("SUCCESS")
    } else {
      reject("FAILURE")
    }
  })
}

const promise = doSomething(); 
promise.then(successCallback, failureCallback);
Elyesc4

promete capturar

//create a Promise
var p1 = new Promise(function(resolve, reject) {
  resolve("Success");
});

//Execute the body of the promise which call resolve
//So it execute then, inside then there's a throw
//that get capture by catch
p1.then(function(value) {
  console.log(value); // "Success!"
  throw "oh, no!";
}).catch(function(e) {
  console.log(e); // "oh, no!"
});
POG

Javascript Promise

var promise = new Promise(function(resolve, reject) {
  // do some long running async thing…
  
  if (/* everything turned out fine */) {
    resolve("Stuff worked!");
  }
  else {
    reject(Error("It broke"));
  }
});

//usage
promise.then(
  function(result) { /* handle a successful result */ },
  function(error) { /* handle an error */ }
);
Grepper

Javascript Promise

let promise = new Promise((resolve,reject)=>{
                try {
                    resolve("some data");
                } catch (error) {
                    reject(error);
                }
            })
            
            promise.then(function (data) {
                console.log(data);
            },function (error) {
                console.error(error);
            })
Powerful Pigeon

Javascript Promise

var myImage = document.querySelector('#example');

function loaded() {
  // bien, la imagen cargó
}

if (myImage.complete) {
  loaded();
} else {
  myImage.addEventListener('load', loaded);
}

myImage.addEventListener('error', function() {
  // ocurrió un imprevisto
});
Sparkling Seahorse

Javascript Promise

const maPromesse = new Promise((resolve, reject) => {
  setTimeout(() => {
    resolve('toto');
  }, 300);
});

maPromesse
  .then(gestionnaireSuccesA, gestionnaireEchecA)
  .then(gestionnaireSuccesB, gestionnaireEchecB)
  .then(gestionnaireSuccesC, gestionnaireEchecC);
lioubi arabi

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