去除數組中值的雙引號

//去除數組中值的雙引號
    for(var i = 0; i < points.length; i++){
        var obj = points[i];
        for(var prop in obj){
            if(obj.hasOwnProperty(prop) && obj[prop] !== null && !isNaN(obj[prop])){
                obj[prop] = +obj[prop];   
            }
        }
    }

console.log(JSON.stringify(objects, null, 2));