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ActionController::InvalidAuthenticityToken
...do caching.
As @toobulkeh commented this is not a vulnerability on :index, :show actions, but beware using this on :put, :post actions.
For example:
caches_page :index, :show
skip_before_filter :verify_authenticity_token, :only => [:index, :show]
Reference: http://api.rubyonrails.org/c...
What is the role of the bias in neural networks? [closed]
...y be critical for successful learning.
It might help to look at a simple example. Consider this 1-input, 1-output network that has no bias:
The output of the network is computed by multiplying the input (x) by the weight (w0) and passing the result through some kind of activation function (e.g....
Not able to access adb in OS X through Terminal, “command not found”
...he problem is: adb is not in your PATH. This is where the shell looks for executables. You can check your current PATH with echo $PATH.
Bash will first try to look for a binary called adb in your Path, and not in the current directory. Therefore, if you are currently in the platform-tools directory...
Internet Explorer 11 detection
...ode also work (for those who prefer another solution , without using ActiveX)
var isIE11 = !!window.MSInputMethodContext && !!document.documentMode;
// true on IE11
// false on Edge and other IEs/browsers.
Original Answer
In order to check Ie11 , you can use this : ( tested)
(or r...
What exactly is a C pointer if not a memory address?
...be some kind of ID or handle or a combination of several IDs (say hello to x86 segments and offsets) and not necessarily a real memory address. This ID could be anything, even a fixed-size text string. Non-address representations may be especially useful for a C interpreter.
...
How can I open multiple files using “with open” in Python?
...o_something()
In earlier versions of Python, you can sometimes use
contextlib.nested() to nest context managers. This won't work as expected for opening multiples files, though -- see the linked documentation for details.
In the rare case that you want to open a variable number of files all a...
How to get unique values in an array
...n about it in the comments for @Rocket's answer, I may as well provide an example that uses no libraries. This requires two new prototype functions, contains and unique
Array.prototype.contains = function(v) {
for (var i = 0; i < this.length; i++) {
if (this[i] === v) return true;
...
What is a monad?
... looked at Haskell recently, what would be a brief, succinct, practical explanation as to what a monad essentially is?
46...
How to subtract X days from a date using Java calendar?
Anyone know a simple way using Java calendar to subtract X days from a date?
10 Answers
...
How do the PHP equality (== double equals) and identity (=== triple equals) comparison operators dif
...en the loosely == equal operator and the strict === identical operator is exactly explained in the manual:
Comparison Operators
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