prototype.js 1011 Bytes
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/**
 *
 * @param fmt
 * @returns {*}
 * @constructor
 */
Date.prototype.format = function (fmt) {
  var o = {
    "M+": this.getMonth() + 1, //月份
    "d+": this.getDate(), //日
    "h+": this.getHours(), //小时
    "m+": this.getMinutes(), //分
    "s+": this.getSeconds(), //秒
    "q+": Math.floor((this.getMonth() + 3) / 3), //季度
    "S": this.getMilliseconds() //毫秒
  };
  if (/(y+)/.test(fmt)) fmt = fmt.replace(RegExp.$1, (this.getFullYear() + "").substr(4 - RegExp.$1.length));
  for (var k in o)
    if (new RegExp("(" + k + ")").test(fmt)) fmt = fmt.replace(RegExp.$1, (RegExp.$1.length == 1) ? (o[k]) : (("00" + o[k]).substr(("" + o[k]).length)));
  return fmt;
}
/**
 * 移除数组的某个元素
 * @param dx 下标
 * @returns {boolean}
 */
Array.prototype.remove = function (dx) {
  if (isNaN(dx) || dx > this.length) {
    return false;
  }
  for (var i = 0, n = 0; i < this.length; i++) {
    if (this[i] != this[dx]) {
      this[n++] = this[i]
    }
  }
  this.length -= 1
}