url中获取参数对象

  function urlParamsToObject(url) {
    //获取字符串 ? 后面的部分
      const queryString = url.split('?')[1];
      console.log(queryString);//a=2&b=3
      const paramsArr = queryString.split('&');
      console.log(paramsArr);//['a=2', 'b=3']
      const paramObj = {};
      paramsArr.forEach(param => {
        const [key, value] = param.split('=');
        paramObj[key] = decodeURIComponent(value);
      });
      return paramObj;
     }
     // 使用示例
     const url = 'http/home/page?a=2&b=3';
     const paramsObj = urlParamsToObject(url);
     console.log(paramsObj);//{a: '2', b: '3'}

多条内容展示拼接符号问题

 //多数据展示中间拼接符号，单数据展示不拼接符号
   function showText(){
    var obj={ 
      apple1:'0', 
      apple2:'0', 
      apple3:'3', 
      apple4:'4', 
      apple5:'5',
     }
     var mapObj={
      apple3:'小苹果',
      apple4:'中苹果',
      apple5:'大苹果',
     }
    let Text =''//展示话术
    let objArr=[]
    for(let key in obj){
     if(obj[key]!=0){   //对源数据进行过滤，展示有数据的
      objArr.push({[key]:obj[key],name:key.substring(key.length - 1)})
      }
    }
    objArr.sort((a,b)=> b.name - a.name ) //先展示大的后展示小的
   if(objArr.length>1){
    objArr.forEach(item=>{
      for(let itemkey in item){
        if(itemkey!='name'){
          Text += (mapObj[itemkey] + obj[itemkey]  +  '个、')
        }
      }
    })
    Text=Text.slice(0,-1)
   }else if(objArr.length==1){
    objArr.forEach(item=>{
      for(let itemkey in item){
        if(itemkey!='name'){
          Text += (mapObj[itemkey] + obj[itemkey] + '个')
        }
      }
    })
   }
   return Text
  }
   let write =showText()
   console.log(write);  //大苹果5个、中苹果4个、小苹果3个