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What is the best way to implement nested dictionaries?
...:
value = self[item] = type(self)()
return value
Testing:
a = AutoVivification()
a[1][2][3] = 4
a[1][3][3] = 5
a[1][2]['test'] = 6
print a
Output:
{1: {2: {'test': 6, 3: 4}, 3: {3: 5}}}
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Counter increment in Bash loop not working
...r != "done" ]
do
echo " $COUNTER "
COUNTER=$[$COUNTER +1]
done
TESTED BASH: Centos, SuSE, RH
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Ruby, !! operator (a/k/a the double-bang) [duplicate]
...ot nil. Most of the time this is great because it saves us typing explicit tests (like if !current_user.nil?, which is at least six characters longer). But sometimes it might be really confusing if you return an object when the method implies that it returns a boolean. Methods whose name ends with ?...
Converting BigDecimal to Integer
...enefit of giving you more control over the rounding process.
Spock Groovy Test
void 'test BigDecimal rounding'() {
given:
BigDecimal decimal = new BigDecimal(Integer.MAX_VALUE - 1.99)
BigDecimal hugeDecimal = new BigDecimal(Integer.MAX_VALUE + 1.99)
BigDecimal reallyHuge = new BigD...
Do try/catch blocks hurt performance when exceptions are not thrown?
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Programs like this hardly seem like good candidates for testing the impact of exception handling, too much of what would be going on in normal try{} catch{} blocks is going to be optimized out. I may be out to lunch on that...
– LorenVS
Aug 2...
Best dynamic JavaScript/JQuery Grid [closed]
...ne did you pick? I header DataTable is also a good option. Which one is fastest? And which one supports grouping?
– Vivek Vardhan
Oct 7 '14 at 11:58
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How to pass arguments from command line to gradle
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Thanks for letting me know! Changing name to testngGroup fixed the problem. Found a list of predefined properties in table 13.1 at gradle.org/docs/current/userguide/writing_build_scripts.html.
– Lidia
Jul 31 '12 at 23:50
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Is there a /dev/null on Windows?
...console - or even a file - can take a significant chunk of time. I've just tested it with a program writing "Hello there" to stdout 10000000 times. Redirecting to a file (on an SSD) took 18 seconds. Redirecting to NUL took 4 seconds. Not redirecting at all made me give up through a lack of patience ...
How to delete a file from SD card?
...thesized permissions."
However nasty workaround exists (see code below). Tested on Samsung Galaxy S4, but this fix does't work on all devices. Also I wouldn’t count on this workaround being available in future versions of Android.
There is a great article explaining (4.4+) external storage perm...
Javascript: formatting a rounded number to N decimals
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.toFixed() works brilliantly in modern browsers (I tested Chrome, Firefox, IE11, IE8). @Bat_Programmer - please clarify which browsers you think have that bug.
– robocat
May 7 '15 at 3:57
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