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How much faster is Redis than mongoDB?
...ict with key/values to retrieve
data = {'key' + str(i): 'val' + str(i)*100 for i in range(num)}
# run tests
for test in tests:
start = time.time()
test(data)
elapsed = time.time() - start
print "Completed %s: %d ops in %.2f seconds : %.1f ops/sec" % (test....
Read file line by line using ifstream in C++
...SBKerrek SB
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Show DialogFragment with animation growing from a point
...
+100
Being DialogFragment a wrapper for the Dialog class, you should set a theme to your base Dialog to get the animation you want:
publ...
List comprehension vs map
...ctly the same function:
$ python -mtimeit -s'xs=range(10)' 'map(hex, xs)'
100000 loops, best of 3: 4.86 usec per loop
$ python -mtimeit -s'xs=range(10)' '[hex(x) for x in xs]'
100000 loops, best of 3: 5.58 usec per loop
An example of how performance comparison gets completely reversed when map ne...
Practical non-image based CAPTCHA approaches?
...a.value) + 1;
}
}
setTimeout("antiSpam()", 1000);
}
antiSpam();
Then when the form is submitted, If the antispam value is still "lalalala", then I mark it as spam. If the antispam value is an integer, I check to see if it is above something like 10 (seconds). If it...
What is the proper #include for the function 'sleep()'?
... On UNIX, Sleep is actually usleep and it takes microseconds (milliseconds*1000) instead of seconds.
– Agostino
Feb 6 '17 at 14:59
6
...
Linear Regression and group by in R
...048 0.13515755 0.1980687 0.8479318
# 3 NY (Intercept) -0.35135766 0.60100314 -0.5846187 0.5749166
# 4 NY year 0.09385309 0.09686043 0.9689519 0.3609470
fitted_models %>% glance(model)
# Source: local data frame [2 x 12]
# Groups: state [2]
#
# state r.squared adj.r.squared...
calculating the difference in months between two dates
...se? so if you are referring to particular, known months, then my method is 100% accurate and you're would be an approximation, however, if you are referring to a month in general, you're approximation would be a better idea, and mine would just be a bad idea (it isn't made for that and there would b...
Why does parseInt yield NaN with Array#map?
...Int's radix parameter.
If you're using underscore you can do:
['10','1','100'].map(_.partial(parseInt, _, 10))
Or without underscore:
['10','1','100'].map(function(x) { return parseInt(x, 10); });
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Programmatically set height on LayoutParams as density-independent pixels
...
/**
* Get conversion rate from dp into px.<br>
* E.g. to convert 100dp: px = (int) (100 * convRate);
* @param context e.g. activity
* @return conversion rate
*/
public static float convRateDpToPx(Context context) {
return context.getResources().getDisplayMetrics().densityDpi / 160f;...