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Why do I get an UnsupportedOperationException when trying to remove an element from a List?
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LinkedList vs ArrayList -->There is a performance test graph from Ryan. LinkedList is faster in removing.
– torno
Jul 1 '15 at 8:57
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When should I create a destructor?
...is very difficult.
When have you needed to create a destructor?
When testing the part of the compiler that handles destructors. I've never needed to do so in production code. I seldom write objects that manipulate unmanaged resources.
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Getting MAC Address
...= None
if if_ip == ip:
return if_mac
return None
Testing:
>>> mac_for_ip('169.254.90.191')
'2c:41:38:0a:94:8b'
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Are there inline functions in java?
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+1, But how can we test whether the compiled version of a method is inlined?
– Pacerier
Sep 16 '14 at 8:11
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Check if table exists in SQL Server
...ed to check for a temporary table you can do this:
if OBJECT_ID('tempdb..#test') is not null
--- temp table exists
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Script to kill all connections to a database (More than RESTRICTED_USER ROLLBACK)
...should be the most reliable way (can't vouch for it, but it is what I will test in the days to come), is actually:
- stop services that may interfere with your access (if there are any)
- use the 'kill' script above to close all connections
- set the database to single_user immediately after that
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zsh compinit: insecure directories
...it will ask if the completion system should really be used. To avoid these tests and make all files found be used without asking, use the option -u, and to make compinit silently ignore all insecure files and directories use the option -i. This security check is skipped entirely when the -C option i...
Javascript array search and remove string?
...everse order, and use the .splice method.
var array = ['A', 'B', 'C']; // Test
var search_term = 'B';
for (var i=array.length-1; i>=0; i--) {
if (array[i] === search_term) {
array.splice(i, 1);
// break; //<-- Uncomment if only the first term has to be removed
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Deserialize JSON with C#
...classes are just an example. You should use proper names.
Adding a sample test:
string json =
@"{""data"":[{""id"":""518523721"",""name"":""ftyft""}, {""id"":""527032438"",""name"":""ftyftyf""}, {""id"":""527572047"",""name"":""ftgft""}, {""id"":""531141884"",""name"":""ftftft""}]}";
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What's the best way to add a drop shadow to my UIView
...UIBezierPath bezierPathWithRoundedRect:view.bounds cornerRadius:5.0];. Not tested but should yield the result you want.
– pkluz
Mar 26 '14 at 20:14
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