收藏一些常用的methods

 

获取url 参数值
getQueryString: function (name) {
　　let reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)", "i");
　　let r = window.location.search.substr(1).match(reg);
　　if (r != null) return unescape(r[2]);
　　　　return null;
},

 

深度拷贝  
copyDeep: function (obj) {
    let copy;
    if (typeof obj === 'object') {
      copy = aa(obj);
    }

    function aa(oo) {
      try {
        let c;
        if (!isNaN(oo.length)) {
          c = [];
          for (let i in oo) {
            let o = oo[i];
            if (typeof o === 'object') c.push(aa(o));
            else c.push(o);
          }
        } else {
          c = {};
          for (let i in oo) {
            c[i] = oo[i];
          }
        }
        return c;
      } catch (e) {
        return null;
      }
    }

    return copy;
  },

全局提示框  
myTips: function myTips(type, data) {
    let fullDom = approach.fullscreenElement();
    if (!document.getElementById('warning')) {
      if(!fullDom) {
         $('body').append('<div id="warning"></div>');
      } else if(fullDom && fullDom.id === 'vsAgainst') {
        $('#vsAgainst').append('<div id="warning"></div>');
      }
    }
    let tip = "";
    switch (type) {
      case "success":
        tip = $("<div class='successBox clearfix showBox'><p>" + data + "</p></div>");
        break;
      case "warning":
        tip = $("<div class='warningBox clearfix showBox'><p>" + data + "</p></div>");
        break;
    }
    $("#warning").append(tip);
    setTimeout(function () {
      tip.remove();
    }, 4000);
  },

分页查询
pageSet: function (wholePage, page) {
    if (wholePage == 1) {
      return "";
    } else if (wholePage <= 9) {
      var pages = "";
      for (var i = 1; i <= wholePage; i++) {
        if (i == page) {
          pages += "<a data-page='" + i + "' class='now'>" + i + "</a>";
        } else {
          pages += "<a data-page='" + i + "'>" + i + "</a>";
        }
      }
      return "<a class='f' data-page='" + (page == 1 ? 1 : page - 1) + "'></a>" + pages + "<a class='l' data-page='" + (page == wholePage ? wholePage : page + 1) + "'></a>";
    } else {
      var pages1 = "",
        pages2 = "";
      if (page <= 3) {
        for (var i = 1; i < 5; i++) {
          if (i == page) {
            pages1 += "<a data-page='" + i + "' class='now'>" + i + "</a>";
          } else {
            pages1 += "<a data-page='" + i + "'>" + i + "</a>";
          }
        }
        for (var i = wholePage - 3; i <= wholePage; i++) {
          pages2 += "<a data-page='" + i + "'>" + i + "</a>";
        }
        return "<a class='f' data-page='" + (page == 1 ? 1 : page - 1) + "'></a>" + pages1 + "<span>...</span>" + pages2 + "<a class='l' data-page='" + (page == wholePage ? wholePage : page + 1) + "'></a>"
      } else if (page > 3 && page < wholePage - 5) {
        for (var i = page - 1; i <= page + 1; i++) {
          if (i == page) {
            pages1 += "<a data-page='" + i + "' class='now'>" + i + "</a>";
          } else {
            pages1 += "<a data-page='" + i + "'>" + i + "</a>";
          }
        }
        for (var i = wholePage - 2; i <= wholePage; i++) {
          pages2 += "<a data-page='" + i + "'>" + i + "</a>";
        }
        return "<a class='f' data-page='" + (page == 1 ? 1 : page - 1) + "'></a><a data-page='1'>1</a><span>...</span>" + pages1 + "<span>...</span>" + pages2 + "<a class='l' data-page='" + (page == wholePage ? wholePage : page + 1) + "'></a>"
      } else {
        for (var i = wholePage - 6; i <= wholePage; i++) {
          if (i == page) {
            pages2 += "<a data-page='" + i + "' class='now'>" + i + "</a>";
          } else {
            pages2 += "<a data-page='" + i + "'>" + i + "</a>";
          }
        }
        return "<a class='f' data-page='" + (page == 1 ? 1 : page - 1) + "'></a><a data-page='1'>1</a><span>...</span>" + pages2 + "<a class='l' data-page='" + (page == wholePage ? wholePage : page + 1) + "'></a>"
      }
    }
  },

//判断空对象
  isEmptyObject: function (e) {
    let t;
    for (t in e)
      return !1;
    return !0
  },

 

    //url转为base64编码
      convertImgToBase64: function (url, callback, outputFormat) {
        url+='?random='+Math.random();
        let canvas = document.createElement("CANVAS"),
          ctx = canvas.getContext("2d"),
          img = new Image();
        img.crossOrigin = "";
        // img.setAttribute("crossOrigin", "anonymous");
        img.onload = function () {
          canvas.height = img.height;
          canvas.width = img.width;
          ctx.drawImage(img, 0, 0);
          var dataURL = canvas.toDataURL(outputFormat || "image/png");
          callback.call(this, dataURL);
          canvas = null;
        };
        img.src = url;
      },

　　

     //将base64编码转换为Blob
      convertBase64UrlToBlob: function (urlData) {
        let bytes = window.atob(urlData.split(",")[1]); //去掉url的头，并转换为byte
        //处理异常,将ascii码小于0的转换为大于0
        let ab = new ArrayBuffer(bytes.length);
        let ia = new Uint8Array(ab);
        for (let i = 0; i < bytes.length; i++) {
          ia[i] = bytes.charCodeAt(i);
        }
        return new Blob([ab], {type: "image/jpeg", filename: "upload.jpg"});
      },