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Remove empty elements from an array in Javascript
...t even simpler arr.filter(e=>e) and this can be chained by map, reduce, etc.
– Sheepy
Feb 9 '15 at 4:32
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Hidden Features of JavaScript? [closed]
... is a different beast. If you know, that you want to cast to string/number/etc, then you shold do that explicitly.
– Rene Saarsoo
Jun 5 '09 at 18:39
15
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Can I store images in MySQL [duplicate]
...nces to the images in the database. e.g. path to the image,the image name, etc.. Or alternatively, you may even store images on a content delivery network (CDN) or numerous hosts across some great expanse of physical territory, and store references to access those resources in the database.
Images ...
Why is the String class declared final in Java?
...our whole environment (sandbox) through reflection and secretKey.intern().getClass().getClassLoader().
Or the JVM could block this hole by making sure that only concrete String objects (and no subclasses) were added to the pool.
If equals was implemented such that SafeString != String then SafeStr...
How do I format a date with Dart?
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how can we fetch only month eg. 1 for january, 2 for february... ? i have tried DateFormat('MM').format(DateTime.now()); but does not work in flutter. Please share your suggestion.
– Kamlesh
Jan 24 ...
What is Data Transfer Object?
...ST/whatever) endpoint from somewhere, or consuming a webservice using SOA, etc...) you do not want to transmit the big sized object with code that is not necessary for the endpoint, will consume data, and slow down the transfer.
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Install NPM into home directory with distribution nodejs package (Ubuntu)
...ols
PATH="$NPM_PACKAGES/bin:$PATH"
# Unset manpath so we can inherit from /etc/manpath via the `manpath` command
unset MANPATH # delete if you already modified MANPATH elsewhere in your configuration
MANPATH="$NPM_PACKAGES/share/man:$(manpath)"
# Tell Node about these packages
NODE_PATH="$NPM_PACK...
How to set the authorization header using curl
... very
many web sites will not use this concept when they provide logins etc. See
the Web Login chapter further below for more details on that.
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What does @: (at symbol colon) mean in a Makefile?
... long. When stubbing this way the file would still compile, pass linting, etc.
– boweeb
May 21 '19 at 18:33
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Remove rows with duplicate indices (Pandas DataFrame and TimeSeries)
...f your index is a MultiIndex, reset_index() adds columns level_0, level_1, etc. And if your index has a name that name will be used in place of the "index" label. That makes this a bit more than a one-liner to do it right for any DataFrame. index_label = getattr(df.index, 'names', getattr(df.index, ...