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Batch not-equal (inequality) operator
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this requires command extensions to be turned on (They are by default on 2000+ but can be turned off system wide or as a parameter to cmd.exe) Normally you should turn them on with setlocal, but for a simple if not equal test, just use "if not...
SQL Server Profiler - How to filter trace to only display events from one database?
...should see the database name. Enter the database name for the Like section and you should see traces only for that database.
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CORS - What is the motivation behind introducing preflight requests?
...ng-the-rules thing.
Preflight requests have nothing to do with security, and they have no bearing on applications that are being developed now, with an awareness of CORS. Rather, the preflight mechanism benefits servers that were developed without an awareness of CORS, and it functions as a sanity...
How to apply two CSS classes to a single element
... b"></div>
Using .a { ... } as a selector will select the first and third. However, if you want to select one which has both a and b, you can use the selector .a.b { ... }. Note that this won't work in IE6, it will simply select .b (the last one).
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Comparison of JSON Parser for Objective-C (JSON Framework, YAJL, TouchJSON, etc)
...w, there are three JSON Parsers for Objective-C, JSON Framework , YAJL , and Touch JSON . Then, These three would have their own characteristics.
For example:
YAJL can be used as a SAX style parser.
JSON Framework has relatively long history and is widely used.
Touch JSON parses NSData...
How to remove all white spaces in java [duplicate]
I have a programming assignment and part of it requires me to make code that reads a line from the user and removes all the white space within that line.
the line can consist of one word or more.
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What is the meaning of single and double underscore before an object name?
...t meaning of having leading underscores before an object's name in Python, and the difference between both?
15 Answers
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Why are data transfer objects (DTOs) an anti-pattern?
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Some projects have all data twice. Once as domain objects, and once as data transfer objects.
This duplication has a huge cost, so the architecture needs to get a huge benefit from this separation to be worth it.
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catch exception that is thrown in different thread
...( Method1 ) spawns a new thread.
That thread execute a method ( Method2 ) and during exectution an exception is thrown.
I need to get that exception information on the calling method ( Method1 )
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Extracting extension from filename in Python
...ly treat /a/b.c/d as having no extension instead of having extension .c/d, and it will treat .bashrc as having no extension instead of having extension .bashrc:
>>> os.path.splitext('/a/b.c/d')
('/a/b.c/d', '')
>>> os.path.splitext('.bashrc')
('.bashrc', '')
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