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How to sort with lambda in Python
...result is [('303', '30'), ('343', '34'), ('999', '9')] which is not sorted base on the second element in every list.
– Daniel Kua
Jun 13 at 4:26
...
What are the underlying data structures used for Redis?
...your point was What type to use to accomplish what?.
Strings
This is the base type of all the types. It's one of the four types but is also the base type of the complex types, because a List is a list of strings, a Set is a set of strings, and so forth.
A Redis string is a good idea in all the ob...
Prevent direct access to a php include file
...exits if the minimum include count isn't met. Note that prior to PHP5, the base page is not considered an include.
2: Defining and verifying a global constant
// In the base page (directly accessed):
define('_DEFVAR', 1);
// In the include files (where direct access isn't permitted):
defined('_DEF...
Using .NET, how can you find the mime type of a file based on the file signature not the extension
...
This is based on the filename however. It could be useful for someone, just not the OP, who wanted it done by file contents.
– mandreko
Aug 23 '11 at 18:09
...
Maximum call stack size exceeded error
... stack limit.
This is almost always because of a recursive function with a base case that isn't being met.
Viewing the stack
Consider this code...
(function a() {
a();
})();
Here is the stack after a handful of calls...
As you can see, the call stack grows until it hits a limit: the browser ha...
How do I filter ForeignKey choices in a Django ModelForm?
...rgs)
# access object through self.instance...
self.fields['base_rate'].queryset = Rate.objects.filter(company=self.instance.company)
class ClientAdmin(admin.ModelAdmin):
form = ClientAdminForm
....
You don't need to specify this in a form class, but can do it directly in t...
How do you Encrypt and Decrypt a PHP String?
...Unless you're using an AEAD construct, ALWAYS encrypt then MAC!
bin2hex(), base64_encode(), etc. may leak information about your encryption keys via cache timing. Avoid them if possible.
Even if you follow the advice given here, a lot can go wrong with cryptography. Always have a cryptography exper...
0.1 float is greater than 0.1 double. I expected it to be false [duplicate]
...= %.0001100110011001100110011001100110011001100110011010
Convert that to base 10:
float(.1) = .10000002384185791015625
double(.1) = .100000000000000088817841970012523233890533447265625
This was taken from an article written by Bruce Dawson. it can be found here:
Doubles are not floats, so don...
JS Client-Side Exif Orientation: Rotate and Mirror JPEG Images
...
@igneosaur: you can send base64 encoded data to the server with canvas.toDataURL() and decode and save it server side.
– br4nnigan
May 30 '16 at 9:34
...
How to access parent scope from within a custom directive *with own scope* in AngularJS?
... function in these examples but you can use a directive controller as well based on requirement.
Option#1. Through Object literal and from directive html template
index.html
<!DOCTYPE html>
<html ng-app="plunker">
<head>
<meta charset="utf-8" />
<title>Ang...