var arr = [];

var key = 'Jeremy';

var value = '!!!!'

arr.push({

'key': key,

'value': value,

}); 

document.write("key: " + arr[]['key'] +

"<br/>value: " + arr[]['value']);

输出结果：

key: Jeremy

value: !!!!

var arr = [];

arr.push("Jeremy");

arr.push("Jimmy");

for(var i in arr)

document.write(i + ": " + arr[i] + "</br>");

输出结果：

: Jeremy

: Jimmy

var dict = []; //or dict = new Array()

dict["Jeremy"] = ;

dict["Jimmy"] = ;

for(var key in dict)

document.write(key + ": " + dict[key] + "</br>"); 

输出结果：

Jeremy:

Jimmy: 

var dict = {

"Jeremy" : ,

"Jimmy" :

};

for(var key in dict)

document.write(key + ": " + dict[key] + "</br>"); 

输出结果：

Jeremy:

Jimmy: 

var dict = {

"Jeremy" : ["Chinese", "Math"] ,

"Jimmy" : ["Art", "English"]

};

var name = "Jeremy";

for(var courseIndex in dict[name])

document.write(dict[name][courseIndex] + "</br>"); 

输出结果：

Chinese

Math

var dict = [];

var courseListOfJeremy = [

{"Chinese" : },

{"Math": }

];

dict['Jeremy'] = courseListOfJeremy;

var courseListOfJimmy = [

{"Art": },

{"English": }

];

dict['Jimmy'] = courseListOfJimmy; 

document.write("Jimmy's Course Number Of Chinese: " + dict['Jeremy'][]['Chinese']);

输出结果：

Jimmy's Course Number Of Chinese: 3