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Best way to simulate “group by” from bash?
...y) and used: arr[$1]=(arr[$1] $2)` with success.
– Stéphane Gourichon
Feb 12 '18 at 11:00
ad...
What is the volatile keyword useful for?
...So if Thread A is creating Singleton instance and just after creation, the CPU corrupts etc, all other threads will not be able to see the value of _instance as not null and they will believe it is still assigned null.
Why does this happen? Because reader threads are not doing any locking and unt...
How do I increase the RAM and set up host-only networking in Vagrant?
...
To increase the memory or CPU count when using Vagrant 2, add this to your Vagrantfile
Vagrant.configure("2") do |config|
# usual vagrant config here
config.vm.provider "virtualbox" do |v|
v.memory = 1024
v.cpus = 2
end
e...
How to use 'cp' command to exclude a specific directory?
... fails with directories with spaces
– Sérgio
May 28 '19 at 1:51
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jquery find closest previous sibling with class
...ling without having to get all. I had a particularly long set that was too CPU intensive using prevAll().
var category = $('li.current_sub').prev('li.par_cat');
if (category.length == 0){
category = $('li.current_sub').prevUntil('li.par_cat').last().prev();
}
category.show();
This gets the firs...
PostgreSQL: Difference between text and varchar (character varying)
... increased storage space when using the blank-padded type, and a few extra CPU cycles to check the length when storing into a length-constrained column. While character(n) has performance advantages in some other database systems, there is no such advantage in PostgreSQL; in fact character(n) is usu...
Is “double hashing” a password less secure than just hashing it once?
...on the server if you had a large user base, because you are relying on the CPU load to slow down the number of requests. It means that if you add more CPU power, you are reducing the restriction on those brute force attackers. -- However, you are completely correct about the scalability, and the wid...
Is there a method for String conversion to Title Case?
.... coderanch.com/t/35096/Programming/…
– Junior Mayhé
Mar 12 '16 at 16:17
Doesn't this break with apostrophe? What a...
gulp command not found - error after installing gulp
I've installed gulp both globally and locally using
39 Answers
39
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NPM doesn't install module dependencies
...tch approach?". This worked great for me.
– Marco Aurélio Deleu
Aug 3 '16 at 22:09
While it is nice to know there is ...