在javascript中返回关键obj的数组

i have this array obj:

我有这个数组obj:

var scenari =[
    {pos:'i4y',azione:('persa','avanti','indietro'),'peso':(0.3,0.4,0.3)},
    {pos:'g4r',azione:('persa','avanti','indietro'),'peso':(0.3,0.4,0.3)}
];

How to retrieve the array in key azione? i try this but is print only 'indietro' and not array

如何在密钥azione中检索数组?我尝试这个但是只打印'indietro'而不是数组

console.log (scenari[0]['azione']);//indietro

3 个解决方案

#1

Parentheses not define an array and must be use brackets ([]):

括号不定义数组,必须使用括号([]):

var scenari =[
    {pos:'i4y',azione:['persa','avanti','indietro'],'peso':[0.3,0.4,0.3]},
    {pos:'g4r',azione:['persa','avanti','indietro'],'peso':[0.3,0.4,0.3]}
]; 

console.log (scenari[0]['azione']);//indietro

#2

You are using () instead of [].

您正在使用()而不是[]。

If you use () last value will be the value of key

如果你使用()最后一个值将是key的值

var scenari =[
    {pos:'i4y',azione:['persa','avanti','indietro'],'peso':(0.3,0.4,0.3)},
    {pos:'g4r',azione:['persa','avanti','indietro'],'peso':(0.3,0.4,0.3)}
]; 

console.log (scenari[0]['azione']);

//If you use () 

//Example:


var ke = ('d','e');

console.log(ke);

#3

You are getting this issue because tuple javascript is treating the data in () as a expression, so to get the result in the way you want you have to use [] or convert your data in string .

您遇到此问题是因为元组javascript将()中的数据视为表达式,因此要以您希望的方式获得结果,您必须使用[]或将数据转换为字符串。

#1