javascript - 动态添加项目到 javascript 对象

Question

我定义了这个:

var data ={};

我想为对象中的每个“行”得到类似的东西:

{field1: "bananas", field2:'test', field3:111, field4:"23.4", field5:"bob"},
{field1: "fruit", field2:'test again', field3:222, field4:"30", field5:"john"}

我知道我可以这样做来添加动态和静态数据:

data['field1']= docType;
    data['field2'] = docRef;
    data['field3'] = "test3";
    data['field4'] = mydynamicdata;
    data['field5'] = "test5";

但是我怎样才能添加不同的项目行呢？这段代码只会添加一个项目集，对吧？如何添加第二个？

谢谢!

Answer 1

您需要一个对象数组 - https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array

var data = [];

data.push({field1: "bananas", field2:'test', field3:111, field4:"23.4", field5:"bob"})
data.push({field1: "fruit", field2:'test again', field3:222, field4:"30", field5:"john"})

然后您可以进行如下更改:

data[0]['field1'] = 'new value'
//or:
data[0].field1 = 'new value'

其中 0 是列表内项目的索引。所以 data[1] 将是第二个对象，依此类推...