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SARTHIKDOBARIYASARTHIKDOBARIYA
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‎ArrowFunction.js

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const marks=[23,34,56,67,78,89]
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const result=marks.map((num)=>{
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console.log(num*num)
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})

‎FetchAPI.js

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try {
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const data = fetch('https://jsonplaceholder.typicode.com/todos/1')
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console.log(data)
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data.then((data) => {
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console.log("Data: ",data)
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return data.json()
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})
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.then((res) => {
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console.log(res)
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})
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.catch((err) => {
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console.log(err)
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throw err
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})
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}
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catch(err){
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console.log("Error: ",err);
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}
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// async function FetchApi(){
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// try {
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// const data = await fetch("https://jsonplaceholder.typicode.com/todos/4")
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// console.log(await data.json())
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// }
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// catch (err){
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// console.log(err)
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// }
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// }
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//
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// FetchApi()
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// const newuser={
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// name:"Sarthik",
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// job:"Intership"
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// }
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// async function FetchApi(){
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// try {
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// const res = await fetch("https://reqres.in/api/users",{
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// method:"POST",
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// headers:{
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// 'Content-Type':'application/json'
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// },
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// body:JSON.stringify(newuser)
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// })
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// const data = await res.json();
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// if(!res.ok){
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// console.log(data.description)
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// return;
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// }
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// console.log("Add Data: ",data)
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// }
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// catch (err){
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// console.log(err)
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// }
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// }
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// FetchApi();
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// async function FetchApi1(){
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// try {
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// const res = await fetch("https://reqres.in/api/users/39",{
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// method:"PUT",
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// headers:{
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// 'Content-Type':'application/json'
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// },
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// body:JSON.stringify({
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// name:"xyz"
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// })
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// })
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// const data = await res.json();
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// if(!res.ok){
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// console.log(data.description)
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// return;
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// }
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// console.log("Update Data",data)
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// }
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// catch (err){
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// console.log(err)
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// }
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// }
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// FetchApi1();
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// async function FetchApi2(){
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// try {
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// const res = await fetch("https://reqres.in/api/users/3", {method:"DELETE"})
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// const data = await res.json();
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// if(!res.ok){
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// console.log(data.description)
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// return;
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// }
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// console.log("delete data",data)
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// }
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// catch (err){
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// console.log(err)
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// }
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// }
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// FetchApi2();
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const newuser = {
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name: "Sarthik",
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email: "Fack@gmail.com"
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}
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url = 'https://jsonplaceholder.typicode.com/users'
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// const data = fetch(url, {
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// method: 'POST',
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// headers: {
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// 'Content-Type': 'application/json'
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// },
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// body: JSON.stringify(newuser)
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// })
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// data.then((response)=>{
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// if(!response.ok){
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// throw new Error('POST is not working')
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// }
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// return response.json()
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// })
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// .then((data)=>{
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// console.log("============",data);
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// })
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// .catch((err)=>{
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// console.log(err);
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// })
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const data=fetch(url,{
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method:'DELETE',
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})
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data.then((response)=>{
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if(!response.ok){
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throw new Error('Delete not working')
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}
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return response.json()
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})
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.then((data)=>{
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console.log("===========",data);
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})
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.catch((err)=>{
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console.log("========",err);
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})

‎Function.js

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function func1(num1,num2,call){
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console.log("This is a Func1")
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// return num1+num2
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call();
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}
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function func2(name){
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console.log("This is a func2")
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// console.log(`${name}`)
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}
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function User(username,loginCount,isLoggedIn){
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this.username=username //variable = this value is you passed
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}
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// HighOrder Function
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function func(){
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return function func3(){
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}
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}
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func()()
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// or
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const f=func("hi")
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f("hii")

‎Hoisting.js

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//function Hoisting
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sum(5,5)
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function sum(a,b){
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console.log(a+b);
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}
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// Hoisting is not working because function hoisting is work only function function_name(){}
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// method1: // it is working but it is not call Hoisting
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sum1(5,6) // (function sum1(a,b){
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// console.log(a+b);
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(function sum1(a,b){ // })
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console.log(a+b);
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}) // sum1(5,6)
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//method 2:
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sum2(5,6) // const sum=(a,b)=>{
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// console.log(a+b);
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const sum=(a,b)=>{ // }
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console.log(a+b); //sum(7,8)
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}
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‎JSON.js

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// const json = '{"result":true, "count":10}';
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// const obj = JSON.parse(json);
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//
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// console.log(obj.result);
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// console.log(obj.count);
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// JSON.stringify
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console.log(JSON.stringify({ x: 5, y: 6 }));
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console.log(JSON.stringify(new Date(2004, 5, 12, 15, 4, 5)));

‎Object.js

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let person = {
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name: "Sarthik",
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"address one": {
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state: "Gujarat",
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country: "India"
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},
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fn: function () {
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console.log(`my name is ${this.name} and live in ${this.address}`);
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}
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};
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let key1='address one'
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console.log(person[key1]);
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let person2 = {
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name: "xyz",
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age: 25,
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qualification: "B.tech"
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};
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// console.log(Object.assign(person,person2))
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let person3 = Object.create(person);
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person3.name = "ABC";
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person3.age = 23;
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console.log(Object.assign(person, person3));
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// console.log(person.name);
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// console.log(person.address);
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// console.log(person.fn);
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// Access method
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// 1.Dot notation
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console.log("Dot notation: ", person2.name);
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//2. Bracket Notation
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console.log("Bracket: ", person2["name"]);
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console.log("Bracket: ", person2["qualification"]);
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//3.Accessing keys
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console.log("Access key: ", Object.keys(person3));
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//4.using value
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const key = "age";
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console.log("Value: ", person2[key]);
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//5.object Destructuring
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const { name, age } = person;
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console.log("Object: ", name);
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console.log("object: ", age);
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//6.object entries
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console.log("Entries: ", Object.entries(person));
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//7.object value
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console.log("object value: ", Object.values(person));
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//8.for in loop
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for (let key in person) {
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console.log(key, person[key]);
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}
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//9.Using Map object
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const personMap = new Map([["name", "Sarthik"], ["age", 20]]);
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console.log("Map name: ", personMap.get("name"));
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console.log("Map age: ", personMap.get("age"));

‎Promise.js

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const promise1=new Promise((resolve,reject)=>{
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setTimeout(() => {
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resolve(1)
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},2001);
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})
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const promise2=new Promise((resolve,reject)=>{
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setTimeout(() => {
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resolve(2)
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},3000);
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})
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const promise3=new Promise((resolve,reject)=>{
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setTimeout(() => {
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reject(3)
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},500);
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})
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// console.time("start: ");
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// promise1.then((a)=>{
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// console.log(a);
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// })
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// .catch((e)=>{
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// console.log(e);
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// })
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// promise2.then((a)=>{
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// console.log(a);
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// })
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// .catch((e)=>{
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// console.log(e);
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// })
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// promise3.then((a)=>{
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// console.log(a);
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// })
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// .catch((e)=>{
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// console.log(e);
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// })
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// console.timeEnd("start: ");
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const fun=async function p1(){
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try{
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// console.time("start: ")
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// const a=await promise1
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// console.log(a);
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// const b=await promise2
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// console.log(b);
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// const c=await promise3
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// console.log(c);
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// console.timeEnd("start: ")
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const l=await Promise.allSettled([promise1,promise2,promise3])
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console.log('++++++++++',l);
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}
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catch(e){
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console.log(e);
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}
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finally{
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console.log("running");
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}
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}
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fun()
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// Promise chaining
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// console.time("start: ");
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// promise1.then((a)=>{
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// console.log(a);
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// return promise2
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// })
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// .then((b)=>{
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// console.log(b);
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// return promise3
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// })
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// .then((c)=>{
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// console.log(c);
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// console.timeEnd("start: ")
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// })
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// .catch((e)=>{
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// console.log(e);
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// })
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Promise.allSettled([promise1,promise2,promise3]).then((a)=>{
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console.log("running a:",a);
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console.log("running b:",b);
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console.log("running c:",c);
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})
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.catch((e)=>{
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console.log(e);
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})
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//allsettled,all
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