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Remove commas from the string using JavaScript
...you can do the maths, you'll need parseFloat:
var total = parseFloat('100,000.00'.replace(/,/g, '')) +
parseFloat('500,000.00'.replace(/,/g, ''));
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How to check if hex color is “too black”?
...ived brightness is light.
tinycolor("#fff").isLight(); // true
tinycolor("#000").isLight(); // false
isDark
Return a boolean indicating whether the color's perceived brightness is dark.
tinycolor("#fff").isDark(); // false
tinycolor("#000").isDark(); // true
getLuminance
Returns the perceive...
Track the time a command takes in UNIX/LINUX?
...looks like, timed with time:
$ time sleep 1
real 0m1.001s
user 0m0.000s
sys 0m0.000s
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Why are C++ inline functions in the header?
...red May 2 '14 at 15:46
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How to fix java.net.SocketException: Broken pipe?
...In the following case, I create a Socket server that listen at TCP port 10_000 and accept max 200 pending sockets.
new Thread(() -> {
try (ServerSocket serverSocket = new ServerSocket(10_000, 200)) {
logger.info("Server starts listening on TCP port {}", port);
while (true)...
How do I measure request and response times at once using cURL?
...ime_namelookup: 0.001s
time_connect: 0.037s
time_appconnect: 0.000s
time_pretransfer: 0.037s
time_redirect: 0.000s
time_starttransfer: 0.092s
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time_total: 0.164s
Make a Linux/Mac shortcut (alias)
alias curltime="curl -w \"@$HOME/.curl-...
.NET unique object identifier
... I found that I would usually get a duplicate by the time I had created 10,000 instance of an object (a WinForms TextBox), and could never get past 30,000. Code relying on the supposed uniqueness was causing intermittent crashes in a production system after creating no more than 1/10 that many obje...
How to Free Inode Usage?
...2.04LTS and could not remove the old linux kernels which took up about 400,000 inodes because apt was broken because of a missing package. And I couldn't install the new package because I was out of inodes so I was stuck.
I ended up deleting a few old linux kernels by hand to free up about 10,000 i...
MongoDB or CouchDB - fit for production? [closed]
...gs including real time analytics and a caching layer. They are doing over 1000 writes per second to a fairly large database.
If you go to the mongodb Production Deployments page you'll see some people who are using mongo in production.
If you have any questions about the scale or scope of producti...
Add EBS to Ubuntu EC2 Instance
... (with update to /etc/fstab so it stays mounted on reboot):
sudo mkdir -m 000 /vol
echo "/dev/xvdf /vol auto noatime 0 0" | sudo tee -a /etc/fstab
sudo mount /vol
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