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Building a complete online payment gateway like Paypal [closed]
...een there and done that. It was a lot easier about 10 years ago than it is now, but if you have a phenomenal amount of time, money and patience available, it is still possible.
You will need to contact an acquiring bank. You didnt say what region of the world you are in, but by this I dont mean a ...
Which is faster: Stack allocation or Heap allocation
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On some (mostly embedded, that I know of) architectures, stack may be stored in fast on-die memory (e.g. SRAM). This can make a huge difference!
– leander
Jul 15 '09 at 1:16
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if (key in object) or if(object.hasOwnProperty(key)
...someMap.constructor will yield -> function Object() { [native code] }
Now, if you want to iterate through "someMap" you will have to do it this way:
const key
for(key in someMap ){
if (someMap.hasOwnProperty(key)) {
// Do something
}
}
We are doing so in order to avoid iterating over i...
How to make phpstorm display line numbers by default?
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Just now found where is it on Windows. Its View -> Active Editor -> Show Line Numbers (changes only for current document) and File -> Settings -> Editor -> Appearance -> Show Line Numbers (for all documents)
For...
How do I install a NuGet package .nupkg file locally?
...2010. Trying to download and install latest nuget from their homepage just now. Download click next next...then error...M$ as expected, there is a link of known issues, checked that, says signature mismatch then I need to uninstall the existing nuget and it is easy fix. fine, do that. When I restart...
Two versions of python on linux. how to make 2.7 the default
..., or put it in your ~/.bashrc if you want the change to be persistent, and now when you type python it runs your chosen 2.7, but when some program on your system tries to run a script with /usr/bin/env python it runs the standard 2.6.
Alternatively, just create a virtual environment out of your 2...
Convert array to JSON
...] which holds a few integers.
I've added a few values to the array, but I now need to send this array to a page via jQuery's .get method. How can I convert it to a JSON object for sending?
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How big can a user agent string get?
... I'm less concerned with server limits since I am on IIS, I know it won't ever be bigger then their limit which is still preety large if memory serves....
– JoshBerke
Mar 17 '09 at 18:42
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Why was “Avoid Enums Where You Only Need Ints” removed from Android's performance tips?
...d your credentials in your SO profile. It took me some digging around. But now that I see that you seem to work on the VM team, I'll accept your answer as the official answer. :)
– Thierry-Dimitri Roy
Mar 11 '11 at 18:03
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Hidden features of Perl?
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There are many non-obvious features in Perl.
For example, did you know that there can be a space after a sigil?
$ perl -wle 'my $x = 3; print $ x'
3
Or that you can give subs numeric names if you use symbolic references?
$ perl -lwe '*4 = sub { print "yes" }; 4->()'
yes
There's a...