Whiteboard Coding Test

whiteboard1

cari kata “forstok” dari sebuah kata:

contoh 
-ffffforrrrrrstookkkk answer YES
-forastok	answer YES
-forlikesvrtyeok answer YES
-dhkortfsuhuahjdhsjhdjshs answer NO


function forstokString(s) {
        var str = “forstok”;
        if (s.length < str.length) {
            return "NO";
        }
        var j = 0;
        for (var i = 0; i < s.length; i++) {
            if (j < str.length && s.charAt(i) == str.charAt(j)) {
                    j++;
            }
        }
        return (j == str.length ? "YES" : "NO");
}

whiteboard2

const x = 110;

var nilai = x;
var balik = 0;

while(nilai >0){
  balik = (nilai % 10) + (balik * 10);
  nilai = Math.floor(nilai / 10);
}

console.log(balik);

if(x == balik){
  console.log("palindrome");
}else{
  console.log("bukan palindrome");
}

whiteboard3

variable a = a , b = b, coba buat function swap menjadi a = 10 dan b = 2. tidak boleh ada variable tambahan & string

var a = 10;
var b = 2;

a = a+b;
b = a-b;
a = a-b;

console.log(a);
console.log(b);

whiteboard4

class Stack { 
  
    constructor() 
    { 
        this.items = []; 
    } 

    getItems(){
      return this.items;
    }

    push(element) 
    { 
    	this.items.push(element); 
    } 

    pop() 
    { 
    	if (this.items.length == 0) 
    		return "Underflow"; 
    	return this.items.pop(); 
    } 

    peek() 
    { 
    	return this.items[this.items.length - 1]; 
    } 

    isEmpty() 
    { 
    	return this.items.length == 0; 
    } 

    printStack() 
    { 
        return this.items;
    } 

}

whiteboard5

# console logs the numbers from 1 to n, where n is the integer the function takes as its parameter
# logs fizz instead of the number for multiples of 3
# logs buzz instead of the number for multiples of 5
# logs fizzbuzz for numbers that are multiples of both 3 and 5

const fizzBuzz = num => {
  for(let i = 1; i <= num; i++) {
    // check if the number is a multiple of 3 and 5
    if(i % 3 === 0 && i % 5 === 0) {
      console.log('fizzbuzz')
    } // check if the number is a multiple of 3
      else if(i % 3 === 0) {
      console.log('fizz')
    } // check if the number is a multiple of 5
      else if(i % 5 === 0) {
      console.log('buzz')
    } else {
      console.log(i)
    }
  }
}