1. 程式人生 > >javascript中常見的函式封裝 :判斷是否是手機,判斷是否是微信,獲取url地址?後面的具體引數值,毫秒格式化時間,手機端px、rem尺寸轉換等

javascript中常見的函式封裝 :判斷是否是手機,判斷是否是微信,獲取url地址?後面的具體引數值,毫秒格式化時間,手機端px、rem尺寸轉換等

// 判斷是否是手機
function plat_is_mobile(){
  var sUserAgent = navigator.userAgent.toLowerCase();
  var bIsIpad = sUserAgent.match(/ipad/i) == "ipad";
  var bIsIphoneOs = sUserAgent.match(/iphone os/i) == "iphone os";
  var bIsMidp = sUserAgent.match(/midp/i) == "midp";
  var bIsUc7 = sUserAgent.match(/rv:1.2.3.4/i) == "rv:1.2.3.4";
  var bIsUc = sUserAgent.match(/ucweb/i) == "ucweb";
  var bIsAndroid = sUserAgent.match(/android/i) == "android";
  var bIsCE = sUserAgent.match(/windows ce/i) == "windows ce";
  var bIsWM = sUserAgent.match(/windows mobile/i) == "windows mobile";
if (bIsIphoneOs || bIsMidp || bIsUc7 || bIsUc || bIsAndroid || bIsCE || bIsWM) {
  return true;
} else {
  return false;
}
}
// 判斷是否是手機


// 判斷是否是微信
function isWeiXin(){
  var ua = window.navigator.userAgent.toLowerCase();
  if(ua.match(/MicroMessenger/i) == 'micromessenger'){
    return true;
  }else{
    return false;
  }
}
// 判斷是否是微信
// 獲取url地址?後面的具體引數值
function GetArgsFromHref(sArgName){
  var sHref =top.location.href;
  var args= sHref.split("?");
  var retval = "";
  if(args[0] == sHref) {
    return retval;
  }
  var str = args[1];
  args = str.split("&");
  for(var i = 0; i < args.length; i ++) {
    str = args[i];
    var arg = str.split("=");
    if(arg.length <= 1) continue;
    if(arg[0] == sArgName) retval = arg[1];
  }
  return retval;
};
// 獲取url地址?後面的具體引數值

// 毫秒格式化時間
function getLocalTime(time){ 
  var datetime = new Date(); 
  datetime.setTime(time); 
  var year = datetime.getFullYear(); 
  var month = datetime.getMonth() + 1 < 10 ? "0" + (datetime.getMonth() + 1) : datetime.getMonth() + 1; 
  var date = datetime.getDate() < 10 ? "0" + datetime.getDate() : datetime.getDate(); 
  var hour = datetime.getHours()< 10 ? "0" + datetime.getHours() : datetime.getHours(); 
  var minute = datetime.getMinutes()< 10 ? "0" + datetime.getMinutes() : datetime.getMinutes(); 
  var second = datetime.getSeconds()< 10 ? "0" + datetime.getSeconds() : datetime.getSeconds(); 
  return year + "-" + month + "-" + date+" "+hour+":"+minute+":"+second; 
}; 
// 毫秒格式化時間

//前端手機px、rem尺寸轉換js程式碼
function mobile(){
  var size=100, //規定rem與px之間值的轉換
  maxWidth =750; //設定基準寬度。
  ratio = function(){ 
    var r = document.documentElement.clientWidth / maxWidth;
    return r>=1?1:r<=0.234?0.234:r; 
  };
  set = function(){
  document.documentElement.style.fontSize = ratio() * size +'px'; 
  }();
  window.onresize = mobile;
}
mobile();
//前端手機px、rem尺寸轉換js程式碼