shchegol

Binary search

shchegol

Stack
Queue
Singly linked list

https://github.com/trekhleb/javascript-algorithms/blob/master/src/data-structures

shchegol

// from https://blog.logrocket.com/javascript-typeof-2511d53a1a62

function getType(value) {
  var regex = /^\[object (\S+?)\]$/;
  var matches = Object.prototype.toString.call(value).match(regex) || [];
  
  return (matches[1] || 'undefined').toLowerCase();
}

console.log(type('')); // "string"

shchegol

// from https://medium.com/devschacht/javascripts-new-private-class-fields-c60daffe361b

// METHOD 1: constructor property
// Not reliable
function isArray(value) {
  return typeof value == 'object' && value.constructor === Array;
}

// METHOD 2: instanceof
// Not reliable since an object's prototype can be changed

shchegol

Module
Branching - чтобы не вызывать каждый раз проверки каких-то параметров.
Cuггying
Memoization
Namespace
Private - приватные свойства в конструкторе
Self-exiting object - Для защиты глобального пространства имён

shchegol

Object iterate
Object clone
Is object empty?

shchegol

bubble
cocktail

shchegol

var el = document.getElementById('el');

document.addEventListener('click', outsideEvtListener);

function outsideEvtListener(evt) {
    if (evt.target === el || el.contains(evt.target)) {
        return;
    }
    // code handling outside click
   

shchegol

function declOfNum(number, titles) {  
    cases = [2, 0, 1, 1, 1, 2];  
    return titles[ (number%100>4 && number%100<20)? 2 : cases[(number%10<5)?number%10:5] ];  
}

use:
declOfNum(count, ['найдена', 'найдено', 'найдены']);