JAVASCRIPT

Javascript Interview Questions

//Javascript Interview Questions
var a = [];
var b = a;
console.log(a == b);
// true
console.log(a === b);
// true

javascript interview questions

var student= {age:20, batch:"ABC"};
Delete student. age;

Javascript Interview Questions

//Javascript Interview Questions

var array = [7, 5, 4, 0];
var name = "john";

console.log(...array);
//7 5 4 0

javascript interview questions

(function(){
  var a = b = 3;
})();

console.log("a defined? " + (typeof a !== 'undefined'));
console.log("b defined? " + (typeof b !== 'undefined'));

javascript interview quetions

var symbol1 = Symbol('symbol');

javascript interview quetions

var symbol1 = Symbol('symbol');

javascript interview quetions

var symbol1 = Symbol('symbol');

Javascript Interview Questions

//Javascript Interview Questions

var a = [];
var b = [];
console.log(a == b);
//false
console.log(a === b);
//false

javascript interview questions

var currentDate = new Date();
var day = currentDate.getDate();
Var month = currentDate.getMonth() + 1;
var monthName;
var hours = currentDate.getHours(); 
var mins = currentDate.getMinutes(); 
var secs = currentDate.getSeconds(); 
var strToAppend;
If (hours >12 )
{
    hours1 = "0" + (hours - 12);
strToAppend = "PM";
}
else if (hours <12)
{
    hours1 = "0" + hours;
    strToAppend = "AM";
}
else
{
    hours1 = hours;
    strToAppend = "PM";
}
if(mins<10)
mins = "0" + mins;
if (secs<10)
    secs = "0" + secs;
switch (month)
{
    case 1:
        monthName = "January";
        break;
    case 2:
        monthName = "February";
        break;
    case 3:
        monthName = "March";
        break;
    case 4:
        monthName = "April";
        break;
    case 5:
        monthName = "May";
        break;
    case 6:
        monthName = "June";
        break;
    case 7:
        monthName = "July";
        break;
    case 8:
        monthName = "August";
        break;
    case 9:
        monthName = "September";
        break;
    case 10:
        monthName = "October";
        break;
    case 11:
        monthName = "November";
        break;
    case 12:
        monthName = "December";
        break;
}

var year = currentDate.getFullYear();
var myString;
myString = "Today is " + day +  " - " + monthName + " - " + year + ".<br />Current time is " + hours1 + ":" + mins + ":" + secs + " " + strToAppend + ".";
document.write(myString);

Javascript Interview Questions

//Javascript Interview Questions

var a = [15];
var b = [15];
console.log(a[0] == b[0]);
//ture
console.log(a[0] === b[0]);
//true