jagmeet-chaudhary

var bob1  = {
    name : "Jack",
    friends : [],
    getFriends : function() {
        console.log(this.name);
        this.friends.forEach(function(item){
            console.log(this.name + " is friends with " + item); //this is undefined here
        })
    }
}

jagmeet-chaudhary

class Employee {
    constructor(empNo,name,department){
        this.employeeNumber = empNo;
        this.name = name;
        this.department = department;
    }

    getEmployeeProfile(){
        return this.name + "|" + this.department + "|" + this.employeeNumber;
    }

jagmeet-chaudhary

var employee = {
    name : '',
    department : '',
    employeeNumber : '',
    getEmployeeProfile : function() {
        return this.name + "|" + this.department + "|" + this.employeeNumber;
    }
}

var jack = Object.create(employee);

jagmeet-chaudhary

//function constructor
function Employee(empNo,name,department){
    this.employeeNumber = empNo
    this.name = name;
    this.department = department;
}

Employee.prototype.getEmployeeProfile = function(){
    return this.name + "|" + this.department + "|" + this.employeeNumber;

jagmeet-chaudhary

person = {
    firstName : "Jack",
    lastName : "doresy",
    getFullName : function () {
        return this.firstName + " " + this.lastName;
    }
}
//List down all the properties (including the function)
for(var prop in person){
    console.log(prop + "->" + person[prop]);

jagmeet-chaudhary

function filterFn(arr, predicate) {
  resultArr = [];
  for (i = 0; i < arr.length; i++) {
    if (predicate(arr[i])) {
      resultArr.push(arr[i]);
    }
  }
  return resultArr;
}

jagmeet-chaudhary

function getName(){
    console.log(this.firstName + " " + this.lastName);
}
function Add(n1,n2){
    console.log(n1 + n2);
}
getName(); // undefined undefined

person1 = {
    firstName : "jack",

jagmeet-chaudhary

function createFunctionArray(){
    arr = [];
    for(i=0;i<3;i++){
        let j = i;
        arr.push (function(){
            console.log("i =" + i); //Always print 3 
            console.log("j =" + j); //Prints the value of i for each iteration
        })
    }

jagmeet-chaudhary

function sayGreeting(greeting){
    var innerVar = "inner";
    return function() {
        console.log(greeting + "," + innerVar); 
    }
}

var greetingFn = sayGreeting("hi");
greetingFn();//prints -> hi,inner
// greetingFn still has access to 'innerVar' and 'greeting' passed since its part of the

jagmeet-chaudhary

[{"Name":"Dix","Age":27,"Designation":"Analyst","Paygrade":"Leve1","Department":"Marketing"},
{"Name":"Alphonso","Age":48,"Designation":"Director","Paygrade":"Executive","Department":"Product Management"},
{"Name":"Lester","Age":36,"Designation":"Manager","Paygrade":"Level3","Department":"Services"},
{"Name":"Lennard","Age":30,"Designation":"Director","Paygrade":"Level3","Department":"Legal"},
{"Name":"Bryn","Age":27,"Designation":"Sr Analyst","Paygrade":"Executive","Department":"Product Management"},
{"Name":"Mac","Age":40,"Designation":"Director","Paygrade":"Leve1","Department":"Training"},
{"Name":"Enid","Age":34,"Designation":"Director","Paygrade":"Level3","Department":"Services"},
{"Name":"Nanon","Age":44,"Designation":"Analyst","Paygrade":"Executive","Department":"Engineering"},
{"Name":"Booth","Age":45,"Designation":"Director","Paygrade":"Level3","Department":"Human Resources"},
{"Name":"Elsinore","Age":46,"Designation":"Manager","Paygrade":"Level2","Department":"Product Management"}]