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JUnit vs TestNG [closed]
...c annotated method that it finds will be used, but it may find them in any order. This causes us to write different classes unnecessarily. However TestNG provides clean way to provide different kind of data providers for each and every method. So we can test the same unit of code with valid and inva...
How to check for valid email address? [duplicate]
...ere is no point. Even if you can verify that the email address is syntactically valid, you'll still need to check that it was not mistyped, and that it actually goes to the person you think it does. The only way to do that is to send them an email and have them click a link to verify.
Therefore, a ...
Creating a div element in jQuery [duplicate]
...amically generated div, you may need to put single quotes around class, in order for things to work in IE7, and IE8 - for example 'class':'my-class-name'
– klewis
Feb 28 '13 at 23:12
...
How to remove the lines which appear on file B from another file A?
...-to-remove> <all-lines>
works on non-sorted files
maintains the order
is POSIX
Example:
cat <<EOF > A
b
1
a
0
01
b
1
EOF
cat <<EOF > B
0
1
EOF
grep -Fvxf B A
Output:
b
a
01
b
Explanation:
-F: use literal strings instead of the default BRE
-x: only consider ma...
Why does Java switch on contiguous ints appear to run faster with added cases?
...value has been removed in JDK 8 after more benchmarking was performed.
Finally, when the method becomes too long (> 25 cases in my tests), it is in not inlined any longer with the default JVM settings - that is the likeliest cause for the drop in performance at that point.
With 5 cases, the d...
android TextView: setting the background color dynamically doesn't work
...nkey's answer given this is the more popular answer, you MUST set the high order bits to non zero for the transparency. I get caught all the time by specifying the RGB without the A. To set the background to pure blue, use 0xff0000ff, not 0x0000ff or it won't work.
– JohnnyLamb...
Block Declaration Syntax List
...at this is distinct from "Blocks as Parameters"; in this instance, you're calling a method that wants a block argument with an anonymous block. If you have already declared a block variable, it is sufficient to pass the variable name as the argument.
[someObject doSomethingWithBlock: ^return_type (...
How can I use Guzzle to send a POST request in JSON?
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I used a variation of this. I created the Client by itself and added the headers to the $client->post() call instead.
– dazed-and-confused
Sep 9 at 19:28
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Why use iterators instead of array indices?
...t the stream iterators and think about what == has been perverted to do in order to fit the pattern, and then tell me iterators are not broken! Or for linked lists. Even for arrays, having to specify one past the end is a broken C style idea -- pointer into the never never. They should be like Ja...
Large, persistent DataFrame in pandas
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