javascriptは、配列の結合配列を作成するための使用方法の例を示します.

 
  
//js                
  
        var arr = new Array(); 
  
        arr["A"] = "boss"; 
  
        arr["B"] = "Emp"; 
  
        for (var m in arr) { 
  
            document.write(arr[m] + " "); 
  
        } 
  
        var person = new Object(); 
  
        person["name"] = "xiaoli"; 
  
        person["age"] = "18"; 
  
        person["salary"] = "1888.9"; 
  
        for (var p in person) { 
  
            document.write(person[p] + "
"); 
  
        } 
  
        //     age   ？ 
  
        if (typeof person["age"] == "undefined") { 
  
            document.write("no"); 
  
        }