Creating a promise

Javascript promises

var posts = [
  {name:"Mark42",message:"Nice to meet you"},
  {name:"Veronica",message:"I'm everywhere"}
];

function Create_Post(){
  setTimeout(() => {
    posts.forEach((item) => {
      console.log(`${item.name} --- ${item.message}`);
    });
  },1000);
}

function New_Post(add_new_data){
  return new Promise((resolve, reject) => {
    setTimeout(() => {
     posts.push(add_new_data);
      var error = false;
      if(error){
        reject("Something wrong in </>, Try setting me TRUE and check in console");
      }
      else{
        resolve();
      }
    },2000);
  })
}

New_Post({name:"War Machine",message:"I'm here to protect"})
    .then(Create_Post)
    .catch(err => console.log(err));

Source: youtube.com

Making promises

new Promise((resolve, reject) => {
  if (ok) { resolve(result) }
  else { reject(error) }
})

Source: devhints.io

Creating a promise

JS
copy
let done = true

const isItDoneYet = new Promise((resolve, reject) => {
  if (done) {
    const workDone = 'Here is the thing I built'
    resolve(workDone)
  } else {
    const why = 'Still working on something else'
    reject(why)
  }
})

Source: nodejs.dev

Similar codes

0 vote171 views1 answer
Components of loadrunner
TypeScript
0 vote171 views1 answer
How to take multiple int inputs in the same line in C++
TypeScript
0 vote157 views1 answer
3 parts of apptitude
TypeScript
0 vote168 views1 answer
'create' is deprecated
TypeScript
0 vote177 views1 answer
How to set date axes limits in matplotlib plot
TypeScript
0 vote178 views2 answers
Gradients colors in android
TypeScript
10 votes133 views1 answer
Online javascript to typescript compiler
TypeScript
0 vote150 views1 answer
Getstaticpaths errors after new posts
TypeScript
0 vote163 views1 answer
"A neutron star's immense gravitational attraction is due primarily to its small radius and"
TypeScript
0 vote174 views1 answer
Init Lambda based on typescript
TypeScript