大约有 48,000 项符合查询结果（耗时：0.0255秒） [XML]
select、poll、epoll之间的区别总结[整理] - C/C++ - 清泛网 - 专注C/C++及内核技术
select、poll、epoll之间的区别总结[整理]select，poll，epoll都是IO多路复用的机制。I O多路复用就通过一种机制，可以监视多个描述符，一旦某个描述符就绪（一般是读就绪或者写就绪...select，poll，epoll都是IO多路复用的机制。I/O多路...
Is it possible to apply CSS to half of a character?
.../
overflow: hidden;
pointer-events: none; /* so the base char is selectable by mouse */
color: #f00; /* for demo purposes */
text-shadow: 2px -2px 0px #af0; /* for demo purposes */
}
.halfStyle:after { /* creates the right part */
display: block;
direction: rtl; /* ...
Getting value of select (dropdown) before change
The thing I want to achieve is whenever the <select> dropdown is changed I want the value of the dropdown before change. I am using 1.3.2 version of jQuery and using on change event but the value I am getting over there is after change.
...
MySQL get the date n days ago as a timestamp
...
DATE_SUB will do part of it depending on what you want
mysql> SELECT DATE_SUB(NOW(), INTERVAL 30 day);
2009-06-07 21:55:09
mysql> SELECT TIMESTAMP(DATE_SUB(NOW(), INTERVAL 30 day));
2009-06-07 21:55:09
mysql> SELECT UNIX_TIMESTAMP(DATE_SUB(NOW(), INTERVAL 30 day));
1244433347
...
Generate MD5 hash string with T-SQL
...
Use HashBytes
SELECT HashBytes('MD5', 'email@dot.com')
That will give you 0xF53BD08920E5D25809DF2563EF9C52B6
-
SELECT CONVERT(NVARCHAR(32),HashBytes('MD5', 'email@dot.com'),2)
That will give you F53BD08920E5D25809DF2563EF9C52B6
...
Use jQuery to get the file input's selected filename without the path
... your HTML do:
<input type="file" name="Att_AttributeID" onchange="fileSelect(event)" class="inputField" />
Then in your js file create a simple function:
function fileSelect(id, e){
console.log(e.target.files[0].name);
}
If you're doing multiple files, you should also be able to get...
Set cache-control for entire S3 bucket automatically (using bucket policies?)
...it can take some time.
Log in to AWS Management Console
Go into S3 bucket
Select all files by route
Choose "More" from the menu
Select "Change metadata"
In the "Key" field, select "Cache-Control" from the drop down menu
max-age=604800Enter (7 days) for Value
Press "Save" button
(thanks to @biplob ...
jQuery - select the associated label element of a input field [duplicate]
I have a set of input fields, some of them have labels associated, some not:
3 Answers
...
AI助手能力再进化：“手术级”修改代码块 - AI 助手 - 清泛IT社区，为创新赋能！
... {"local_var": "oldRow","value":{"select_item":{"list":{"get_var": "oldBoard"},"index":{"get_var": "r"}}},"do":[
{"...
Select between two dates with Django
I am looking to make a query that selects between dates with Django.
4 Answers
4
...