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Parse JSON String into a Particular Object Prototype in JavaScript
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How do you add swap to an EC2 instance?
...r extra memory, this memory is much slower than normal memory however much more of it is available.
To add this extra space to your instance you type:
sudo /bin/dd if=/dev/zero of=/var/swap.1 bs=1M count=1024
sudo /sbin/mkswap /var/swap.1
sudo chmod 600 /var/swap.1
sudo /sbin/swapon /var/swap.1
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Java Programming - Where should SQL statements be stored? [closed]
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Usually, the more the application grows in terms of size and/or reusability, the more the need is to externalize/abstractize the SQL statements.
Hardcoded (as static final constants) is the first step.
Stored in a file (properties/xml fi...
What's the difference between utf8_general_ci and utf8_unicode_ci?
...icode or _general. Much of what's written below is not of much interest anymore if you can use one of the newer collations instead.
Key differences
utf8mb4_unicode_ci is based on the official Unicode rules for universal sorting and comparison, which sorts accurately in a wide range of languages.
u...
How to impose maxlength on textArea in HTML using JavaScript
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Grouping functions (tapply, by, aggregate) and the *apply family
...b c
1 3 91
sapply(x, FUN = sum)
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In more advanced uses of sapply it will attempt to coerce the
result to a multi-dimensional array, if appropriate. For example, if our function returns vectors of the same length, sapply will use them as columns of a matrix:
sa...
How to import a module given the full path?
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@AXO and more to the point one wonders why something as simple and basic as this has to be so complicated. It isn't in many many other languages.
– rocky
May 22 '16 at 17:04
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Return a `struct` from a function in C
... @CarlNorum how large does a structure have to get that a copy costs more than malloc + free?
– josefx
Mar 11 '12 at 15:56
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How to map calculated properties with JPA and Hibernate
...read: Hibernate Derived Properties - Performance and Portability.
Without more details, I can't give a more precise answer but the above link should be helpful.
See also:
Section 5.1.22. Column and formula elements (Hibernate Core documentation)
Section 2.4.3.1. Formula (Hibernate Annotations do...
npm install vs. update - what's the difference?
...ev flag is added
Why use npm install at all?
Because npm install does more when you look besides handling your dependencies in package.json.
As you can see in npm install you can ...
manually install node-modules
set them as global (which puts them in the shell's PATH) using npm install -g &l...