Question

我正在以对象形式接收数据。该对象包含三个键保存数组值的属性。我想将这三个数组连接成一个主Array。但应该按照首选顺序。像

var obj = {'type':['a','b'],'power':[500,700],'make':['2012','2015']}
oneArray(obj,'make','type','power')

主人Array应首先从对象获得'make'，'type'然后'power'键Array。现在它正按顺序排列obj Fidde

var obj = {'type':['a','b'],'power':[500,700],'make':['2012','2015']}

var oneArray = function (obj,first,second,third){
var newObj = obj;
var list = [];
for(var key in newObj){
 if (newObj[key] instanceof Array) {
          if (!list) {
            list = newObj[key];
          }
          else {
            list = list.concat(newObj[key]);
          }

        }
}
newObj['all'] = list;
return newObj
}

console.log(oneArray(obj,'make','type','power'))

Answer 1

我不确定我是否明白你的问题，但试试这个...... 这个onArray（）函数接受的参数以有序的方式指示优先级，但第一个参数。

var obj = {'type':['a','b'],'power':[500,700],'make':['2012','2015']}

var oneArray = function(obj) {
    var newObj = obj;
    var list = [];
    var priorityList = arguments;

    for( var i = 1 ; i < priorityList.length ; i++ ) {
        if( newObj[ priorityList[i] ] instanceof Array ) {
            for( var key in newObj[ priorityList[i] ] ) {
                list.push( newObj[ priorityList[i] ][ key ] );
            }
        }
    }

    newObj['all'] = list;
    return newObj;
}

console.log(oneArray(obj,'make','type','power'));

如何在javascript中推送首选数组

1 个答案: