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How to add extension methods to Enums
...eek, Month };
static class DurationExtensions
{
public static DateTime From(this Duration duration, DateTime dateTime)
{
switch (duration)
{
case Day: return dateTime.AddDays(1);
case Week: return dateTime.AddDays(7);
case Month: return dateTime.AddMonths(1);
...
Run cron job only if it isn't already running
...; where wrapping the first letter of your command in brackets excludes it from the grep results.
– Jim Clouse
Feb 5 '13 at 19:01
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Redis: Show database size/size for keys
...
The solution from the comments deserves it's own answer:
redis-cli --bigkeys
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How do I load my script into the node.js REPL?
... " (note the space) into the REPL and drag/drop the file into the Terminal from the Finder to add the correct path to your command. This is handy if the files you're working with are several levels down.
– jamesnotjim
Jun 5 '19 at 16:00
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Detecting syllables in a word
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Here is a solution using NLTK:
from nltk.corpus import cmudict
d = cmudict.dict()
def nsyl(word):
return [len(list(y for y in x if y[-1].isdigit())) for x in d[word.lower()]]
s...
How to change a PG column to NULLABLE TRUE?
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From the fine manual:
ALTER TABLE mytable ALTER COLUMN mycolumn DROP NOT NULL;
There's no need to specify the type when you're just changing the nullability.
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“Invalid form control” only in Google Chrome
...trol is hidden by javascript, we also must remove the 'required' attribute from that control.
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Best practices/performance: mixing StringBuilder.append with String.concat
... = (new StringBuffer()).append(s1).append(s2).toString();
Taken straight from the Java Best Practices on Oracles website.
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How to find the sum of an array of numbers
...[1,2,3].join('+'))
)
//This way is dangerous if the array is built
// from user input as it may be exploited eg:
eval([1,"2;alert('Malicious code!')"].join('+'))
Of course displaying an alert isn't the worst thing that could happen. The only reason I have included this is as an answe...
Where does PHP store the error log? (php5, apache, fastcgi, cpanel)
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I guess the issue from @Hi-Angel was trying to run an actual PHP tag (instead of pure PHP code) through... PHP shell (php -a)
– igorsantos07
Jun 19 at 7:01
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