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How to check for a valid URL in Java?
...ion derived/taken from the BNF for URI (RFC2396).
*/
private static final String URL_PATTERN =
"/^(([^:/?#]+):)?(//([^/?#]*))?([^?#]*)(\\?([^#]*))?(#(.*))?/";
// 12 3 4 5 6 7 8 9
/**
* Schema/Protocol (ie. http:, ftp:, file:, etc).
*/
private s...
How to test if parameters exist in rails
...te:
Not there at all.
There but nil.
There but false.
There but an empty string.
as well. Hard to say without more details of your precise situation.
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How do you clear the SQL Server transaction log?
...he shrink options in maintenance plans, they're awful).
DECLARE @path NVARCHAR(255) = N'\\backup_share\log\testdb_'
+ CONVERT(CHAR(8), GETDATE(), 112) + '_'
+ REPLACE(CONVERT(CHAR(8), GETDATE(), 108),':','')
+ '.trn';
BACKUP LOG foo TO DISK = @path WITH INIT, COMPRESSION;
Note that \\back...
add column to mysql table if it does not exist
...a little less typing:
-- add fields to template table to support ignoring extra data
-- at the top/bottom of every page
CALL addFieldIfNotExists ('template', 'firstPageHeaderEndY', 'INT NOT NULL DEFAULT 0');
CALL addFieldIfNotExists ('template', 'pageHeaderEndY', 'INT NOT NULL DEFAULT 0');
CALL ad...
How does Python's super() work with multiple inheritance?
...eyword parameters: accept more parameters than the method uses, and ignore extra ones. Its generally considered ugly to do this, and for most cases adding new methods is better, but init is (nearly?) unique as a special method name but with user defined parameters.
– lifeless
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Linux MySql编译安装 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...\
-DDEFAULT_CHARSET=utf8 \
-DDEFAULT_COLLATION=utf8_general_ci \
-DWITH_EXTRA_CHARSETS=all \
-DWITH_MYISAM_STORAGE_ENGINE=1 \
-DWITH_INNOBASE_STORAGE_ENGINE=1 \
-DWITH_MEMORY_STORAGE_ENGINE=1 \
-DWITH_READLINE=1 \
-DENABLED_LOCAL_INFILE=1 \
-DMYSQL_DATADIR=/var/mysql/data \
-DMYSQL_USER=my...
StringUtils.isBlank() vs String.isEmpty()
...
StringUtils.isBlank() checks that each character of the string is a whitespace character (or that the string is empty or that it's null). This is totally different than just checking if the string is empty.
From the linked do...
Iterate an iterator by chunks (of n) in Python? [duplicate]
...ry and take much longer to run. Why do that if you don't have to? At 200K, extra temp storage makes the overall program take 3.5x longer to run than with it removed. Just that one change. So it is a pretty big deal. NumPy won't work because the iterator is a database cursor, not a list of numbers.
...
Read and parse a Json File in C#
...{
using (StreamReader r = new StreamReader("file.json"))
{
string json = r.ReadToEnd();
List<Item> items = JsonConvert.DeserializeObject<List<Item>>(json);
}
}
public class Item
{
public int millis;
public string stamp;
public DateTime datet...
How can I swap positions of two open files (in splits) in vim?
...m cleaning up currently, and decided to move it all to a plugin. I did the extraction, and to test that it still worked as a bundle, I split the window many times, and ran some 0r!figlet one [two, three, etc], then tested it out. Before going further I checked github, found your (wes') plugin, with ...