var data = [ ['選項1', 10], ['選項2', 10], ['選項3', 50],['選項4', 30] ];
var oneArr=[].concat.apply([],data);//["選項1", 35, "選項2", 15, "選項3", 25, "選項4", 25]
var jsonArr=[];
var nameArr=[];

for(var i=0;i<oneArr.length;i++){
    if(i%2==0){
        var dataName=oneArr[i];
        var str='{name:"'+oneArr[i]+'",value:'
 
+oneArr[i+1]+'}';

var jsonStr=eval('('+str+')');

nameArr.push(dataName);

jsonArr.push(jsonStr);

    }

}

console.log(jsonArr);//[{name: "選項1", value: 10},{name: "選項2", value: 10},{name: "選項3", value: 50},{name: "選項4", value: 30}]

console.log(nameArr);//["選項1", "選項2", "選項3", "選項4"]