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In an array of objects, fastest way to find the index of an object whose attributes match a search
...y your criteria. For example: function hashf(el) { return String(el.id) + "_" + String(el.name); }. This is just a hint: elementPos = array.map(hashf(x)).indexOf(hash({id:3, name:'Pablo'})); Obviously, the hash function I provide is not valid for all cases since '_' could form part of your values bu...
How to check Oracle database for long running queries
...SQL that is currently "ACTIVE":-
select S.USERNAME, s.sid, s.osuser, t.sql_id, sql_text
from v$sqltext_with_newlines t,V$SESSION s
where t.address =s.sql_address
and t.hash_value = s.sql_hash_value
and s.status = 'ACTIVE'
and s.username <> 'SYSTEM'
order by s.sid,t.piece
/
This shows locks....
How to find out how many lines of code there are in an Xcode project?
...loc-1.56.pl' command. If your source code is located in directory 'project_code' You just need to run following command.
– JZ.
Sep 26 '14 at 3:41
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How can I perform a `git pull` without re-entering my SSH password?
...reate a file called ~/.ssh/config and add the line:
IdentityFile ~/.ssh/my_key2_rsa
where ~/.ssh/my_key2_rsa is my key.
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SVN needs-lock 设置强制只读属性（官方资料） - 环境配置 - 清泛IT论坛，...
...\.swf.$ \.vsd.$ \.xls.$ \.zip.[ DISCUZ_CODE_0 ]quot; %TEMP%\tempfile%2`) do (
%SVNLOOK% propget -t %2 %1 svn:needs-lock %%i 1> nul 2> nul
if ERRORLEVEL 1 (
echo commit denied, binary files must have property svn:needs...
How do I add indices to MySQL tables?
...
ALTER TABLE `table` ADD INDEX `product_id_index` (`product_id`)
Never compare integer to strings in MySQL. If id is int, remove the quotes.
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Return index of greatest value in an array
...
If you are utilizing underscore, you can use this nice short one-liner:
_.indexOf(arr, _.max(arr))
It will first find the value of the largest item in the array, in this case 22. Then it will return the index of where 22 is within the array, in this case 2.
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adding multiple entries to a HashMap at once in one statement
... 2016) as follow:
Map<String, Integer> cities = Map.of("Brussels", 1_139000, "Cardiff", 341_000);
The var-args case for Map is a little bit harder, you need to have both keys and values, but in Java, methods can’t have two var-args parameters. So the general case is handled by taking a va...
Is it possible to set the equivalent of a src attribute of an img tag in CSS?
...er-image: url("http://upload.wikimedia.org/wikipedia/commons/9/95/Christmas_bell_icon_1.png")
0 100% 100% 0;
}
<img width="300" height="120"
src="http://fc03.deviantart.net/fs71/f/2012/253/b/0/merry_christmas_card_by_designworldwide-d5e9746.jpg"
class="myClass"...
Dealing with “java.lang.OutOfMemoryError: PermGen space” error
.../usr/share/tomcat6/bin/setenv.sh and added the following line to that: JAVA_OPTS="-Xms256m -Xmx512m -XX:+CMSClassUnloadingEnabled -XX:+CMSPermGenSweepingEnabled" - Restarted tomcat using: sudo /etc/init.d/tomcat6 start
– sami
Dec 10 '10 at 14:44
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