javascript - 解码 Javascript For 循环

Question

我找到了这个示例代码，但想看看如何使用单独的语句重写它，即。需要找出正确的语法

//Create the random data
   for (var i = 0; i < 2; i++) {
     var my_object = {};
     my_object.key = i;
     my_object.country = getRandomCountry();
     my_object.value = createRandomValue;
     data.push(my_object);
   }

我试过了

var my_object = {};
my_object(key[0]) = 0;
my_object(country[0]) = "GB";
my_object(value[0]) = 123;
my_object(key[1]) = 1;
my_object(country[1]) = "US";
my_object(value[1]) = 133;

但这不起作用，如何在没有 for 循环的情况下创建/填充数组？

Answer 1

你的循环实际上是这样做的。它在每个操作中创建一个对象，填充它，然后插入数组。在你的情况下:2次。

var data = [];

// Here starts
var my_object = {};
my_object.key = 0;
my_object.country = getRandomCountry();
my_object.value = createRandomValue;

data.push(my_object);

my_object = {};
my_object.key = 1;
my_object.country = getRandomCountry();
my_object.value = createRandomValue;

data.push(my_object);