定义数组的关联数组

Question

我想像这样定义一个关联数组

var theVar = [
  { "100", [0, 1, 2] },
  { "101", [3, 4, 5] }
]

基本上我希望能够通过指定自定义索引来访问三个数字的数组.

但是,无论我尝试什么,我都无法使其发挥作用.

我知道我可以将它定义为:

theVar["100"] = [0, 1, 2];
theVar["101"] = [1, 2, 3];

但我将其设置在其他地方,我宁愿能够在一个声明中设置它.

Answer 1

theVar = {
  "100": [0, 1, 2],
  "101": [3, 4, 5]
}

可能会做的伎俩.然后,您可以使用theVar["101"](或theVar[101]就此而言)进行访问.

(因为var它也是JavaScript中的关键字,将其用作变量名称很可能会导致问题.)

Answer 2

看看JSON语法,我认为它可以激发您的数据结构的构建,使其灵活,正确和复杂.

此页面包含大量有助于您的信息和示例.

比如看看这个:

var employees = { "accounting" : [   // accounting is an array in employees.
                                    { "firstName" : "John",  // First element
                                      "lastName"  : "Doe",
                                      "age"       : 23 },

                                    { "firstName" : "Mary",  // Second Element
                                      "lastName"  : "Smith",
                                      "age"       : 32 }
                                  ], // End "accounting" array.                                  
                  "sales"       : [ // Sales is another array in employees.
                                    { "firstName" : "Sally", // First Element
                                      "lastName"  : "Green",
                                      "age"       : 27 },

                                    { "firstName" : "Jim",   // Second Element
                                      "lastName"  : "Galley",
                                      "age"       : 41 }
                                  ] // End "sales" Array.
                } // End Employees