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What makes a keychain item unique (in iOS)?
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+50
The primary keys are as follows (derived from open source files from Apple, see Schema.m4, KeySchema.m4 and SecItem.cpp):
For a keyc...
What's the difference between == and .equals in Scala?
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204
You normally use ==, it routes to equals, except that it treats nulls properly. Reference equal...
Creating an index on a table variable
Can you create an index on a table variable in SQL Server 2000?
3 Answers
3
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How remove word wrap from textarea?
...wrap="soft" to explicitly disable wrap:
<textarea name="nowrap" cols="30" rows="3" wrap="soft"></textarea>
EDIT: The "wrap" attribute is not officially supported. I got it from the german SELFHTML page (an english source is here) that says IE 4.0 and Netscape 2.0 support it. I also te...
What's the difference between Invoke() and BeginInvoke()
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answered Oct 23 '08 at 12:40
Jon SkeetJon Skeet
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How to prove that a problem is NP complete?
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edited Jun 20 at 9:12
Community♦
111 silver badge
answered Nov 27 '10 at 23:11
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Use of the MANIFEST.MF file in Java
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The content of the Manifest file in a JAR file created with version 1.0 of the Java Development Kit is the following.
Manifest-Version: 1.0
All the entries are as name-value pairs. The name of a header is separated from its value by a colon. The default manifest shows that it conforms to ver...
When to use cla(), clf() or close() for clearing a plot in matplotlib?
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edited Jul 6 '18 at 2:08
spinkus
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answered Nov...
updating table rows in postgres using subquery
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720
Postgres allows:
UPDATE dummy
SET customer=subquery.customer,
address=subquery.address,
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Linq to Entities join vs groupjoin
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380
Behaviour
Suppose you have two lists:
Id Value
1 A
2 B
3 C
Id ChildValue
1 a1
1 a2...