whal-e3

//Deleting multiple elements.

//solution is to make duplicated vector.
#include <iostream>
#include <vector>

int main() {
	std::vector<int> array;
	std::vector<int> arr;
	for (int i = 0; i < array.size(); i++) {

whal-e3

// How to connect elements in every possible cases.
#include <iostream>
#include <vector>

int main() {
	// n : number of elements in vector
	int n;		std::cin >> n;
	std::vector<int> vec(n);
	
	for (int i = 0; i < n; i++) {

whal-e3

//C++ class example

#include <iostream>
#include <string>

class Box {
private:
	int l;
	int b;
	long long int h;

whal-e3

#include <iostream>
#include <string>
#include <vector>

long long int reg_factorial(int num) {
    long long int res = 1;
    for (int i = num; i > 0; i--)    res *= i;
    return res;
}
std::vector<long long int> spe_factorial(int num) {

whal-e3

// EXAMINE THE DOCUMENT OBJECT // -- by Traversy Media 

console.dir(document);
console.log(document.domain);
console.log(document.URL);
console.log(document.title);
//document.title =  123;
console.log(document.doctype);
console.log(document.head);
console.log(document.body);

whal-e3

SELECT COUNT(DISTINCT(*)) FROM _somewhere_

WHERE _something_ <= 12 AND _something2_ = '_word_'         
WHERE _something_ BETWEEN 8 AND 9
WHERE _something_ IN (0.99, 1.98, 1.99)
WHERE _something_ LIKE/ILIKE '_J%'

ORDER BY _something_ ASC, _something2_ DESC
LIMIT 5;

whal-e3

// This file is used in youtube video "Traversy Media".
// visit "Traversy Media" down below
// https://www.youtube.com/watch?v=rRgD1yVwIvE&list=PLillGF-RfqbbnEGy3ROiLWk7JMCuSyQtX&index=9


const companies= [
  {name: "Company One", category: "Finance", start: 1981, end: 2004},
  {name: "Company Two", category: "Retail", start: 1992, end: 2008},
  {name: "Company Three", category: "Auto", start: 1999, end: 2007},
  {name: "Company Four", category: "Retail", start: 1989, end: 2010},

whal-e3

let val;

val = document;

// val = document.all;
// val = document.all[2];

val = document.head;
val = document.body;
val = document.doctype;

whal-e3

// Local & Session storage

// Only difference =  local - data remains // Session - erased when browser closed(session ends)

// --------------------------------------------------------------------

// set local storage item
localStorage.setItem('name', 'John');
localStorage.setItem('age', '30');
sessionStorage.setItem('name', 'Beth');

whal-e3

// Define UI variables
const form = document.querySelector('#task-form');
const taskList = document.querySelector('.collection');
const clearBtn = document.querySelector('.clear-tasks');
const filter = document.querySelector('#filter');
const taskInput = document.querySelector('#task');

// Load all event listeners
loadEventListeners();