javascript - 读取 d3 键值

Question

我有 csv 文件，其标题为 Station ID、Elev、Latitude、Longitude, 县, Nat_ID, Year_Built, 容量, YrsStr1, YrsStr2，.....在这里，我想获取从 YrsStr1 到 YrsSt578 的所有列的值，并跳过其他列值。下面是跳过列的代码，但我无法获取列值？

 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
if(hd[i].includes("YrsStr")){

codepen 引用网址 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]]);
                }