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Replace a value if null or undefined in JavaScript
...ar filter2 = options.filters[1] || ''; // is ''
That can be accessed by index.
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access denied for load data infile in MySQL
I use MySQL queries all the time in PHP, but when I try
10 Answers
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How do I rename all folders and files to lowercase on Linux?
..." "${DST}" || echo "${SRC} was not renamed"
fi
done
P.S.
The latter allows more flexibility with the move command (for example, "svn mv").
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jQuery : eq() vs get()
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.get() returns an array, .get(index) returns the single element at the index from the array.
– Mohamed Fasil
Aug 10 '14 at 19:23
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Cannot install packages using node package manager in Ubuntu
...of doing symlink by hand. Here is a link to this package in Debian package index website.
It can be installed using sudo apt-get install nodejs-legacy.
I have not found any information about adopting the whole thing by NPM developers, but I think npm package will be fixed on some point and nodejs-...
Choosing the best concurrency list in Java [closed]
... then you can use an AtomicReferenceArray. This would allow you to perform indexed updates to a slot. You could write a List view if needed.
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Rubymine: How to make Git ignore .idea files created by Rubymine
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That doesn't really work when the .idea folder is already under tracking
– ACV
Jan 28 '19 at 9:45
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How do I rename a column in a SQLite database table?
...ame is changed both within the table definition itself and also within all indexes, triggers, and views that reference the column. If the column name change would result in a semantic ambiguity in a trigger or view, then the RENAME COLUMN fails with an error and no changes are applied.
Image sour...
Spark java.lang.OutOfMemoryError: Java heap space
... and nested case classes). If possible try to only use primitive types and index all non-primitives especially if you expect a lot of duplicates. Choose WrappedArray over nested structures whenever possible. Or even roll out your own serialisation - YOU will have the most information regarding how ...
Using an RDBMS as event sourcing storage
...ifically with SQL, we found that performance really became a bottleneck if indexes and partitions weren't adequately used. Remember events will needs to be streamed in reverse order if you are using snapshots. We tried a few different indexes and found that in practise, some additional indexes were ...