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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...
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...
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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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...
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.
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How can I check if a Perl array contains a particular value?
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@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
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How to reset index in a pandas dataframe? [duplicate]
... insert level_0, already exists while using df = df.reset_index() multiple times
– Tms91
Nov 17 '19 at 15:25
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How to append text to an existing file in Java?
...t popular are Log4j and Logback.
Java 7+
If you just need to do this one time, the Files class makes this easy:
try {
Files.write(Paths.get("myfile.txt"), "the text".getBytes(), StandardOpenOption.APPEND);
}catch (IOException e) {
//exception handling left as an exercise for the reader
}
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Git: How do I list only local branches?
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This answer has exactly the same time stamp as the accepted answer. Accepted answer must be ahead in millisecond part :)
– RBT
Aug 15 '17 at 1:27
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log messages appearing twice with Python Logging
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In my case, they were appearing 6 times. I had suspected that because I've declared the same type of logger in 6 oop classes
– answerSeeker
Apr 10 '17 at 3:43
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