Summary of several usages of hash tables in js_javascript skills

1.

Copy code The code is as follows:

2.

Copy code The code is as follows:

< ;script>
var ht =
{
"c1" : {"UserID":"userc1","UserName":"usercc1"},
"c2" : {"UserID": "userc2","UserName":"usercc2"},
"c3" : {"UserID":"userc3","UserName":"usercc3"}
};

alert( ht["c1"]["UserID"]);
alert(ht["c2"]["UserID"]);

3

Copy code The code is as follows:

<script><br> var Arr =new Array( {'s':'sss','aa':'www'},{'s1':'wwww','aa1':'ssss'});<br> alert(Arr[0].s); <br> alert(Arr[0].aa);<br> alert(Arr[1].s1);<br> alert(Arr[1].aa1);<br></script>