Question

我有一个数组，我希望得到所有标准的最小值和所有结束日期的最大值。我先对数组进行排序，然后获得最小值和最大值。以下是代码。

Product Name: EQUAL
Product Version: EQUAL
Missing Data(s): NONE
Unexpected Data(s): NONE
Changed Data(s): NONE
Liquibase 'diff' Successful

但是代码给出的错误是arr.sort不是函数。

Answer 1

那是因为ticket_arr不是一个数组，它是一个字符串。通过删除值周围的单引号来解决此问题：

var ticket_arr = [{"Id":"a874062a-3f1e-4f91-a9d7-334aedd2e79f","Name":"Tesr","StartDate":"2015-04-08","EndDate":"2015-04-09","Duration":"1","leaf":true,"IsProject":false,"IsStage":false,"IsActivity":false,"IsTicket":true,"IsTask":false},{"Id":"19f3722f-5f19-430a-bf8a-699c6841aec2","Name":"Go define this test projecct","StartDate":"2015-04-21","EndDate":"2015-04-29","Duration":"8","leaf":true,"IsProject":false,"IsStage":false,"IsActivity":false,"IsTicket":true,"IsTask":false},{"Id":"5576edbf-3feb-4204-b488-0d0a35688538","Name":"Mike is getting a lesson in cool","StartDate":"2015-04-08","EndDate":"2015-04-10","Duration":"2","leaf":true,"IsProject":false,"IsStage":false,"IsActivity":false,"IsTicket":true,"IsTask":false},{"Id":"5bf5d77c-73b1-480b-8758-2e822db73964","Name":"Test ticket","StartDate":"2015-04-08","EndDate":"2015-04-09","Duration":"1","leaf":true,"IsProject":false,"IsStage":false,"IsActivity":false,"IsTicket":true,"IsTask":false}];

或者，如果它是通过AJAX加载或在客户端生成的，则将其解析为JSON：

var ticket_arr = JSON.parse('[{"Id":"a874062a-3f1e-4f91-a9d7-334aedd2e79f","Name":"Tesr","StartDate":"2015-04-08","EndDate":"2015-04-09","Duration":"1","leaf":true,"IsProject":false,"IsStage":false,"IsActivity":false,"IsTicket":true,"IsTask":false},{"Id":"19f3722f-5f19-430a-bf8a-699c6841aec2","Name":"Go define this test projecct","StartDate":"2015-04-21","EndDate":"2015-04-29","Duration":"8","leaf":true,"IsProject":false,"IsStage":false,"IsActivity":false,"IsTicket":true,"IsTask":false},{"Id":"5576edbf-3feb-4204-b488-0d0a35688538","Name":"Mike is getting a lesson in cool","StartDate":"2015-04-08","EndDate":"2015-04-10","Duration":"2","leaf":true,"IsProject":false,"IsStage":false,"IsActivity":false,"IsTicket":true,"IsTask":false},{"Id":"5bf5d77c-73b1-480b-8758-2e822db73964","Name":"Test ticket","StartDate":"2015-04-08","EndDate":"2015-04-09","Duration":"1","leaf":true,"IsProject":false,"IsStage":false,"IsActivity":false,"IsTicket":true,"IsTask":false}]');

（如果您打算在旧版浏览器上使用JSON.parse，例如IE7-，则需要填充。JSON 3是一个众所周知的浏览器。）

使用sort函数对数组进行排序会返回错误

1 个答案: