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How do I create a variable number of variables?
...u are accessing a global variable you can use globals().
>>> a = 10
>>> globals()['a']
10
If you want to access a variable in the local scope you can use locals(), but you cannot assign values to the returned dict.
A better solution is to use getattr or store your variables in ...
pretty-print JSON using JavaScript
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+100
Pretty-printing is implemented natively in JSON.stringify(). The third argument enables pretty printing and sets the spacing to use:...
android get real path by Uri.getPath()
I'm trying to get image from gallery.
7 Answers
7
...
Tool to read and display Java .class versions
...ead the class file signature and get these values without a 3rd party API. All you need to do is read the first 8 bytes.
ClassFile {
u4 magic;
u2 minor_version;
u2 major_version;
For class file version 51.0 (Java 7), the opening bytes are:
CA FE BA BE 00 00 00 33
...where 0xCAFEBAB...
_=> what does this underscore mean in Lambda expressions?
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edited May 6 '10 at 4:11
answered May 6 '10 at 4:04
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Calling filter returns [duplicate]
...ten) want to do the filtering in a lazy sense -- You don't need to consume all of the memory to create a list up front, as long as the iterator returns the same thing a list would during iteration.
If you're familiar with list comprehensions and generator expressions, the above filter is now (alm...
Are PDO prepared statements sufficient to prevent SQL injection?
...
The short answer is NO, PDO prepares will not defend you from all possible SQL-Injection attacks. For certain obscure edge-cases.
I'm adapting this answer to talk about PDO...
The long answer isn't so easy. It's based off an attack demonstrated here.
The Attack
So, let's start off b...
Chrome sendrequest error: TypeError: Converting circular structure to JSON
...lix Kling
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2
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rails - Devise - Handling - devise_error_messages
...hould help you get started. :)
Another update
The resource object is actually the model that is being used by devise (go figure).
resource.class #=> User
resource.errors.class #=> ActiveModel::Error
It also appears to be defined in a higher scope (probably coming from the contro...
Fastest Way to Serve a File Using PHP
...erywhere.
Using the X-SendFile header
As documented by others it's actually the best way. The basis is that you do your access control in php and then instead of sending the file yourself you tell the web server to do it.
The basic php code is :
header("X-Sendfile: $file_name");
header("Conten...