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Simple proof that GUID is not unique [closed]
... Console.WriteLine("{0:u} - Building a bigHeapOGuids.", DateTime.Now);
// Fill up memory with guids.
var bigHeapOGuids = new HashSet<Guid>();
try
{
do
{
bigHeapOGuids.Add(Guid.NewGuid(...
How to get list of all installed packages along with version in composer?
...
The '-i' option is now deprecated. composer show lists installed package by default.
– herve
Jul 21 '16 at 15:20
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How do I add multiple arguments to my custom template filter in a django template?
...want a template filter that looks like this:
{% if X|is_in:"1,2,3,4" %}
Now we can create your templatetag like this:
from django.template import Library
register = Library()
def is_in(var, args):
if args is None:
return False
arg_list = [arg.strip() for arg in args.split(',')]...
Understanding implicit in Scala
... of the reasons I stopped trying to learn Scala many years ago and am only now coming back to it. I was never sure where some (many) of the implicits were coming from in the code I was looking at.
– melston
Mar 19 '19 at 19:23
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Add Keypair to existing EC2 instance
...file system (still on instance-B):
sudo umount /vol-a
sudo rmdir /vol-a
Now, back on your system with ec2-api-tools, continue moving the EBS volume back to it’s home on the original instance A and start the instance again:
ec2-detach-volume $volume
ec2-attach-volume --instance $instance_a --de...
RAII and smart pointers in C++
... should be anyway), closing the file is taken care of for us. So, our code now looks something like:
File file("/path/to/file");
// Do stuff with file
// No need to close it - destructor will do that for us
This cannot be done in Java since there's no guarantee when the object will be destroyed, ...
Chrome DevTools Devices does not detect device when plugged in
...e.
Definitely not as easy as I thought it would have been but at least it now works.
Update 24 February 2016
So I updated to Windows 10 and now have a Samsung Galaxy S5, devices running Chrome v48.0.2564.116 m and v48.0.2564.95 respectively. Followed the steps from the Google docs and...it didn't...
Swift Beta performance: sorting arrays
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tl;dr Swift 1.0 is now as fast as C by this benchmark using the default release optimisation level [-O].
Here is an in-place quicksort in Swift Beta:
func quicksort_swift(inout a:CInt[], start:Int, end:Int) {
if (end - start < 2){
...
How to set initial value and auto increment in MySQL?
...ples that used these statements in a similar way, and they make more sense now. Thank you.
– Michael Hoffmann
Oct 21 '16 at 0:50
1
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Adding external library in Android studio
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I know it by experience and inspecting.... But there are docs available : developer.android.com/sdk/installing/studio-build.html
– malcubierre
Sep 2 '14 at 6:28
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