逗号分隔的字符串改数组

Question

逗号分隔的字符串改数组

//经纬度坐标点
String str="116.424224,39.904009,116.445167,39.906511,116.442077,39.897754,116.424911,39.896371,116.415813,39.899795,116.415212,39.903746";

//转换成这样是数组怎么弄？？？？？？？？？？？？？？？？？
var arr ={
            [116.424224,39.904009]
           ,[116.445167,39.906511]
           ,[116.442077,39.897754]
           ,[116.424911,39.896371]
           ,[116.415813,39.899795]
           ,[116.415212,39.903746]
        }

一个经度+一个纬度是一组，不能单纯以逗号分隔生成数组了，这个怎么搞

Answer 1

var str = "116.424224,39.904009,116.445167,39.906511,116.442077,39.897754,116.424911,39.896371,116.415813,39.899795,116.415212,39.903746";

function strToCoord(str) {
  var coords = [];
  var arr = str.split(",");
  for (var i = 0; i < arr.length; i+=2) {
    coords.push([parseFloat(arr[i]), parseFloat(arr[i+1])]);
  }
  return coords;
}

var coord = strToCoord(str);
console.log(coord);

望采纳