helper.js

helper.js

(function(global, document){
  'use strict';

  /* -----------------------------------------------------
   * DOM 선택 헬퍼 함수 */

  function els(selector, context) {
    if (typeof selector !== 'string' || selector.trim().length === 0) { return null; }
    context = !context ? document : context.nodeType === 1 ? context : el(String(context));
    return context.querySelectorAll(selector);
  }

  function el(selector, context) {
    if (typeof selector !== 'string' || selector.trim().length === 0) { return null; }
    context = !context ? document : context.nodeType === 1 ? context : el(String(context));
    return context.querySelector(selector);
  }

  /* -----------------------------------------------------
   * 날짜,시간 헬퍼 함수 */

  function getYear(format) {
    return (new Date()).getFullYear() + (format || '');
  }

  function getMonth(format) {
    return ((new Date()).getMonth() + 1) + (format || '');
  }

  function getDate(format) {
    return (new Date()).getDate() + (format || '');
  }

  function getDay(format) {
    var day = (new Date()).getDay();
    switch(day) {
      case 0: day = '일'; break;
      case 1: day = '월'; break;
      case 2: day = '화'; break;
      case 3: day = '수'; break;
      case 4: day = '목'; break;
      case 5: day = '금'; break;
      case 6: day = '토';
    }
    return day + (format || '');
  }

  function getHours(format, ampm) {
    var hour = Number((new Date()).getHours());
    if (ampm) { ampm = hour < 12 ? 'AM ' : 'PM '; }
    else { ampm = ''; }
    hour = hour >= 12 ? hour - 12 : hour;
    return ampm + (hour < 10 ? '0'+hour : hour) + (format || '');
  }

  function getMinutes(format) {
    return (new Date()).getMinutes() + (format || '');
  }

  function getSeconds(format) {
    return (new Date()).getSeconds() + (format || '');
  }

  function getMilliseconds(format) {
    return (new Date()).getMilliseconds() + (format || '');
  }

  function getISOString(format) {
    return (new Date()).toISOString() + (format || '');
  }

  /* -----------------------------------------------------
   * JavaScript 헬퍼 함수 */

  function mixin() {
    var mixin_obj = {};
    for ( var i=0, l=arguments.length; i<l; ++i) {
      var o = arguments[i];
      for ( var key in o ) {
        var value = o[key];
        if (o.hasOwnProperty(key)) { mixin_obj[key] = value; }
      }
    }
    return mixin_obj;
  };

  function defineProp(value, descripter) {
    descripter = mixin({
      configurable: false,
      writable: false,
      enumerable: true,
    }, (descripter || {}));
    descripter.value = value;
    console.log(descripter);
    return descripter;
  }

 /* -----------------------------------------------------
  * y9 네임스페이스 객체 생성 및 메서드 설정 */

  Object.defineProperty(global, 'y9', {
    value: {}
  });

  Object.defineProperties(global.y9, {
    // DOM
    els             : defineProp(els),
    el              : defineProp(el),
    // Date
    getYear         : defineProp(getYear),
    getMonth        : defineProp(getMonth),
    getDate         : defineProp(getDate),
    getDay          : defineProp(getDay),
    getHours        : defineProp(getHours),
    getMinutes      : defineProp(getMinutes),
    getSeconds      : defineProp(getSeconds),
    getMilliseconds : defineProp(getMilliseconds),
    getISOString    : defineProp(getISOString),
    // JavaScript
    mixin           : defineProp(mixin),

  });

  // Object.preventExtensions(global.y9);
  // Object.seal(global.y9);
  // Object.freeze(global.y9);

})(window, window.document);