Question

我有以下数组：

Object { id: "1", name: "a", hour: "08:00:00" }  
Object { id: "2", name: "b", hour: "08:00:00" }  
Object { id: "3", name: "c", hour: "08:00:00" }  
Object { id: "4", name: "d", hour: "07:15:00" }  
Object { id: "5", name: "e", hour: "08:00:00" }  
Object { id: "6", name: "f", hour: "08:00:00" }  
Object { id: "7", name: "g", hour: "09:00:00" }  
Object { id: "8", name: "h", hour: "08:30:00" }

当我尝试访问＆＃34; 小时＆＃34;价值：

for(i = 0; i < array.length; i++){
    var hour = array[i]['hour'];
    console.log(hour);
}

我得到以下结果：

08:00:00  (3 repeats) 
07:15:00   
08:00:00  (2 repeats) 
09:00:00   
08:30:00

我怎样才能避免这种情况并获得：

Answer 1

您正在查看正在打印的浏览器...您无法使用js更改此内容。它是一个依赖于浏览器的设置，在Chrome中只是启用时间戳来查看不同行中的每个console.log。

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Answer 2

这是特定于浏览器的。但是你可以通过将数据保存在一个变量中来解决这个问题，在这个变量中用\ n分隔每一行并在结尾处输出到控制台。

   var output='';
   for(i = 0; i < array.length; i++){
        var hour = array[i]['hour'];
        if (i) output +='\n';
        output += hour;
    }
    console.log(output);

Answer 3

检查console has different methods和用法..但你可以通过遍历数组，使用索引并使用可选的延迟参数{{1}调用WindowOrWorkerGlobalScope.setTimeout()来在控制台中获得所需的输出}：

index * 200

var array = [{ id: "1", name: "a", hour: "08:00:00" }  , { id: "2", name: "b", hour: "08:00:00" }  , { id: "3", name: "c", hour: "08:00:00" }  , { id: "4", name: "d", hour: "07:15:00" }  , { id: "5", name: "e", hour: "08:00:00" }  , { id: "6", name: "f", hour: "08:00:00" }  , { id: "7", name: "g", hour: "09:00:00" }  , { id: "8", name: "h", hour: "08:30:00" }];

array.forEach(function (elem, index) {
  setTimeout(function () {
    console.log(elem.hour);
  }, index * 200);
});

数组结合重复值

3 个答案: