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

2 votes165 views5 answers
Js create query string from object
TypeScript
0 vote155 views1 answer
Java lambda list of objects cast
TypeScript
0 vote137 views1 answer
Google_fonts pub.de
TypeScript
4 votes259 views10 answers
Roblox
TypeScript
6 votes146 views2 answers
How to print 4 digits after decimal in c++
TypeScript
0 vote144 views1 answer
Typescript get object value
TypeScript
6 votes192 views3 answers
Scroll to top angular
TypeScript
1 vote150 views1 answer
Typescript mix props
TypeScript
1 vote167 views2 answers
Change execution policy
TypeScript
1 vote187 views1 answer
Ng : File C:\Users\Sriram\AppData\Roaming\npm\ng.ps1 cannot be loaded because running scripts is disabled on this system. For more information, see about_Execution_Policies at https:/go.microsoft.com/fwlink/?LinkID=135170.
TypeScript