frentsel

var Field = function(selector){
  
  var el = document.querySelector(selector),
      callback;

  this.get = function() {
    return el.value;
  };
  
  this.set = function(val) {

frentsel

var age = 'think';
switch (true) {    
  case (/think/g).test(age):  
    console.log("Think!");  
    break;  
  default:  
    console.log("not found"); 
    break;  
};  

frentsel

({
    css: function(el, prop){
        /*return css-prop*/
    },
    ajax: function(options){
        /*make ajax-request*/
    },
    init: function(name){
        var cache = {};
        this.getCache = function(){ return cache };

frentsel

-- 1. Создаем временную таблицу с правильными записями
CREATE TABLE tmp_users
SELECT * FROM users AS u
GROUP BY u.login 
HAVING COUNT(u.login) >= 1
 
-- 2. Переносим данные из tmp_users в users
-- предварительно очистив users
INSERT INTO users 
SELECT * FROM tmp_users

frentsel

String.prototype.replaceAll = function(find, replace) {
  
  if(typeof find === 'string')
    return this.split(find).join(replace);
  
  var str = this;
  
  find.forEach(function(el, i){
    str = str.split(el).join(replace[i]);
  });