11 Sept 2022

To The New React JS Interview Questions | TTN React Interview Questions | Tp The New UI Interview Questions | JS Interview Questions

 Qus 1.  Given a string "Hello" & write a code to print the count of the chars available to it & create the object like this

{"H":1, "e":1, "l":2, "o":1}


Soln:  

var word = "Hello";

temp = [];

arr.forEach(function(chr){

        temp[chr] = word.split(chr).length - 1;

});

var finalObj = Object.assign({}, temp);

console.log(finalObj);


 Qus 2.  Output of the below given program -

Program:

console.log(1);

console.log(2);

setTimeout(()=>{

console.log(3);

}, 3000);

console.log(4);

console.log(5);

Output:

1

2

4

5

3


 Qus 3.  Output of the below given program & what if replaces the inner function as a arrow method -

Program: 

var personObj = {

    first_name: 'Alex',

    last_name: 'Waugh',


    getName: function(){

        console.log( this.first_name, this.last_name)

    }

}

personObj.getName();

Output:

Alex Waugh

//if replaced the getName to arrow method then what will be the output

undefined undefined


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