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How is mime type of an uploaded file determined by browser?
...hard to verify.
Firefox
As indicated in the Chrome code, Firefox (version 32 as of writing) works in a similar way. Snippet from file uriloader\exthandler\nsExternalHelperAppService.cpp, method nsExternalHelperAppService::GetTypeFromExtension
// OK. We want to try the following sources of mimetype i...
What is the difference between supervised learning and unsupervised learning? [closed]
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29 Answers
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Active
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What's the difference between JPA and Spring Data JPA?
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127
I saw Spring, JPA works around repositories (DAO layer: if I am not wrong). So I mean how it i...
那些微信公众大号是如何赚钱的？ - 资讯 - 清泛网 - 专注C/C++及内核技术
...了上去。没想到文章推送后的3小时内，这款凉鞋卖掉了280双。这次“意外”令她意识到，原来公众号可以赚钱，与淘宝合作也成为她的盈利模式之一。
月入过十万的只是第二梯队
与电视广告根据平台与收视率收费相似，公众...
How to convert java.util.Date to java.sql.Date?
...e classes instead of legacy java.util.Date & java.sql.Date with JDBC 4.2 or later.
Convert to/from java.time if inter-operating with code not yet updated to java.time.
Example query with PreparedStatement.
myPreparedStatement.setObject(
… , // Spec...
How to make a python, command-line program autocomplete arbitrary things NOT interpreter
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edited Jul 28 '17 at 11:31
sneeu
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Replace multiple characters in one replace call
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525
Use the OR operator (|):
var str = '#this #is__ __#a test###__';
str.replace(/#|_/g,''); // re...
Reorder / reset auto increment primary key
...the table. Now I have, for example, something like this in the ID column: 12, 13, 14, 19, 20. I deleted the 15, 16, 17 and 18 rows.
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Easiest way to copy a table from one database to another?
...mp to dump the content of database1.table1 and pipe it to mysql to database2. The problem here is that table1 is still table1.
mysqldump --user=user1 --password=password1 database1 table1 \
| mysql --user=user2 --password=password2 database2
Maybe you need to rename table1 to table2 with another ...
What does @media screen and (max-width: 1024px) mean in CSS?
...t’s displaying the page on-screen, rather than printing it.
max-width: 1024px — the width of the browser window (including the scroll bar) is 1024 pixels or less. (CSS pixels, not device pixels.)
That second test suggests this is intended to limit the CSS to the iPad, iPhone, and similar devic...