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Bash tool to get nth line from a file
...y preference using redirects, because me often used redirects like sed -n '100p' < <(some_command) - so, universal syntax :). It is NOT less effective, because redirection are done with shell when forking itself, so... it is only a preference... (and yes, it is one character longer) :)
...
Why would $_FILES be empty when uploading files to PHP?
...e uploading in PHP:
Check php.ini for:
file_uploads = On
post_max_size = 100M
upload_max_filesize = 100M
You might need to use .htaccess or .user.ini if you are on shared hosting and don't have access to php.ini.
Make sure
you’re editing the correct ini file –
use the phpinfo() function to v...
How can I divide two integers to get a double?
...D's answer
To have a greater precision you can cast to decimal:
(decimal)100/863
//0.1158748551564310544611819235
Or:
Decimal.Divide(100, 863)
//0.1158748551564310544611819235
Double are represented allocating 64 bits while decimal uses 128
(double)100/863
//0.11587485515643106
In depth ex...
Concurrent vs serial queues in GCD
...in 1...10 {
print(i)
}
for i in 1...10 {
print(i + 100)
}
for i in 1...10 {
print(i + 1000)
}
}
No matter how you configure (serial or concurrent) or dispatch (sync or async) this queue, this task will always be executed in serial. The third loop will ne...
Is it better to call ToList() or ToArray() in LINQ queries?
...g to .ToList()
foreach (var x in source)
{
if (x == 5)
source[8] *= 100;
Console.WriteLine(x);
}
The above code will run with no exception and produces the output:
1
2
3
4
5
6
7
8
900
10
This shows that the IEnumarator<int> returned by an int[] does not keep track on whether the a...
Auto Scale TextView Text to Fit within Bounds
...m"
android:autoSizeMinTextSize="12sp"
android:autoSizeMaxTextSize="100sp"
android:autoSizeStepGranularity="2sp" />
Programmatically:
setAutoSizeTextTypeUniformWithConfiguration(int autoSizeMinTextSize, int autoSizeMaxTextSize,
int autoSizeStepGranularity, int unit)
textV...
How do you know what to test when writing unit tests? [closed]
... it, as there were so many different payment options.
An invoice could be $100 but the customer only transferred $99.
Maybe you have sent sales invoices to a customer but you have also purchased from that customer.
So you sold him for $300 but you bought for $100. You can expect your customer to pay...
How do I write output in same place on the console?
...loading File FooFile.txt [%d%%]\r'%i,
Demo:
import time
for i in range(100):
time.sleep(0.1)
print 'Downloading File FooFile.txt [%d%%]\r'%i,
Python 3
print('Downloading File FooFile.txt [%d%%]\r'%i, end="")
Demo:
import time
for i in range(100):
time.sleep(0.1)
print('Dow...
T-SQL split string
...o the outer query in order to avoid errors with recursion for strings > 100 characters. If that is also not a good alternative then see this answer as pointed out in the comments.
(Also, the delimiter will have to be NCHAR(<=1228). Still researching why.)
More on split functions, why (and pr...
How to align absolutely positioned element to center?
...
*{
margin:0;
padding:0;
}
section{
background:red;
height: 100vh;
width: 100vw;
}
div{
width: 80vw;
height: 80vh;
background: white;
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
}
<section>
<div>
<h1&g...