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What do 'lazy' and 'greedy' mean in the context of regular expressions?

...ill prevent this. By adding the ? after the +, we tell it to repeat as few times as possible, so the first > it comes across, is where we want to stop the matching. I'd encourage you to download RegExr, a great tool that will help you explore Regular Expressions - I use it all the time. ...
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Shell script to send email [duplicate]

I am on linux machine and I monitor a process usage. Most of the time I will be away from my system and I have access to internet on my device. So I planned to write a shell-script that can mail me the output of the process. ...
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What is the difference between string primitives and String objects in JavaScript?

... smart engine will not convert a string primitive-y to String object every time you need to call a method. This is also informatively mentioned in the Annotated ES5 spec. with regard to resolving properties (and "methods"¹) of primitive values: NOTE The object that may be created in step 1 is n...
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How to find an available port?

...e port, close it again, and then open one again on the free port (by which time there is a small chance something else is now listening on that port.) – Graham Edgecombe Sep 4 '12 at 12:49 ...
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server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none

... Great. You saved my time. – Sai prateek Jun 14 '17 at 8:53  |  show 2 more comments ...
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How to delete from a text file, all lines that contain a specific string?

...ok Air, OS X 10.13.2). Create file: seq -f %f 10000000 >foo.txt. sed d: time sed -i '' '/6543210/d' foo.txt real 0m9.294s. sed !p: time sed -i '' -n '/6543210/!p' foo.txt real 0m13.671s. (For smaller files, the difference is larger.) – jcsahnwaldt Reinstate Monica ...
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Is there any way to call a function periodically in JavaScript?

...chedule the next request *only* when the current one is complete: setTimeout(myPeriodicMethod, 1000); } }); } // schedule the first invocation: setTimeout(myPeriodicMethod, 1000); Another approach is to use setTimeout but track elapsed time in a variable and then set the timeout delay...
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What are the differences between django-tastypie and djangorestframework? [closed]

...y nicely decoupled and flexible. If you're planning on investing a lot of time in the API, I'd def recommend browsing through the docs & codebase of each and trying to get a feel for which suits you more. Obviously, there's also the 'Why TastyPie?' section in it's README, and the 'REST framewo...
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What's the fastest way to loop through an array in JavaScript?

...is is definitely a case where I applaud JavaScript engine developers. A runtime should be optimized for clarity, not cleverness. share | improve this answer | follow ...
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How can I check if a Perl array contains a particular value?

... @RobWells no, it will work fine. The next time it see's the same value, it will just overwrite the entry in the hash, which in this case sets it to 1 again. – andrewrjones Mar 18 '13 at 10:00 ...