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Best practices for overriding isEqual: and hash
...])
return NO;
This repeatedly failed (i.e., returned NO) without and error, when I knew the objects were identical in my unit testing. The reason was, one of the NSString instance variables was nil so the above statement was:
if (![nil isEqual: nil])
return NO;
and since nil will respon...
Why does struct alignment depend on whether a field type is primitive or user-defined?
In Noda Time v2, we're moving to nanosecond resolution. That means we can no longer use an 8-byte integer to represent the whole range of time we're interested in. That has prompted me to investigate the memory usage of the (many) structs of Noda Time, which has in turn led me to uncover a slight ...
What's wrong with Groovy multi-line String?
Groovy scripts raises an error:
3 Answers
3
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Replace words in a string - Ruby
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Won't you get an error with this method if the original string doesn't contain the word you're trying to replace?
– srcspider
Jan 2 '13 at 15:59
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Get file version in PowerShell
...efine this by adding -ea silentlycontinue to ignore things like permission errors in folders you can't search:
ls application.exe -r -ea silentlycontinue | % versioninfo
-ea is an alias for -ErrorAction
Finally, if you are getting ellipses (...) in your results, you can append | fl to return t...
How can I round up the time to the nearest X minutes?
...s + offset - delta, dt.Kind);
}
Usage:
var date = new DateTime(2010, 02, 05, 10, 35, 25, 450); // 2010/02/05 10:35:25
var roundedUp = date.RoundUp(TimeSpan.FromMinutes(15)); // 2010/02/05 10:45:00
var roundedDown = date.RoundDown(TimeSpan.FromMinutes(15)); // 2010/02/05 10:30:00
var roundedToNeare...
Different ways of adding to Dictionary
...ences with ; you refuse to use emojis because they would throw compilation error and all list of favorites is 0 index based.
Your diet changed too! So you alter your list again:
/*you don't want to replace Salad, you want to add this new fancy 0
position to your list. It wasn't there before so y...
Most efficient method to groupby on an array of objects
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There's a reference error on your code in jsBin.
– Rod Talingting
Jul 20 at 22:37
add a comment
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Should JAVA_HOME point to JDK or JRE?
...t and set up the environment variables related to Ant, I got the following error messages after typing "ant -version"
7 An...
UITableView set to static cells. Is it possible to hide some of the cells programmatically?
...ic cell has any constraints towards the cell.content you may get a runtime error if those constraints go invalid for your new cell height.
– Pedro Borges
Sep 9 '14 at 12:01
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