閱讀D3鍵的值

Question

我有csv file是Station ID，Elev，Latitude，Longitude，County，Nat_ID，Year_Built，Capacity，YrsStr1，YrsStr2，..... 在這裏，我想從YrsStr1獲得所有列的值，它們的頭直到YrsSt578並跳過其他列值。以下是跳過列的代碼，但我無法獲取列值？

var hd = d3.keys(res[0]); 

     for (var i = hd.length - 1; i >= 0; i--) { 
      if((hd[i] === "Station") || (hd[i] === "ID") || (hd[i] === "Elev") || (hd[i] === "Latitude") 
       || (hd[i] === "Longitude") || (hd[i] === "County") || (hd[i] === "Nat_ID") || (hd[i] === "Year_Built") 
       || (hd[i] === "Capacity")){ 
      }else{ 

      } 
     } 

Answer 1

使用
如果（HD [I] .includes（ 「YrsStr」））{

參考 http://codepen.io/nagasai/pen/pbyvmG

   for (var i = hd.length - 1; i >= 0; i--) { 
        if(hd[i].includes("YrsStr")){ 
         console.log("key"+hd[i] +"--value"+res[hd[i]]); 
       }