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What is a CSRF token ? What is its importance and how does it work?
... logged into your online banking at www.mybank.com
Assume a money transfer from mybank.com will result in a request of (conceptually) the form http://www.mybank.com/transfer?to=<SomeAccountnumber>;amount=<SomeAmount>. (Your account number is not needed, because it is implied by your logi...
foldl versus foldr behavior with infinite lists
...rk backwards computing each application of f.
This is obviously a far cry from the efficient tail-recursion most functional programmers know and love!
In fact, even though foldl is technically tail-recursive, because the entire result expression is built before evaluating anything, foldl can cause...
What is the alternative for ~ (user's home directory) on Windows command prompt?
...h a .bashrc-type file: superuser.com/questions/144347/…. Putting step 1. from this answer into the bashrc.bat file will set it at startup.
– Brydenr
Dec 17 '19 at 23:33
add ...
Code Golf: Lasers
...s to write w=p-G instead of w=p-G+1. Also, this finishes off the ?: chain from the M's.
for(;
q+=m,
Move the light by the movement vector.
m=
*q&4
?(*q&1?-1:1)*(
m/w?m/w:m*w
)
Reflect the movement vector.
...
Is there a TRY CATCH command in Bash
...
# this subshell is a scope of try
# try
(
# this flag will make to exit from current subshell on any error
# inside it (all functions run inside will also break on any error)
set -e
a
b
# do more stuff here
)
# and here we catch errors
# catch
errorCode=$?
if [ $errorCode -ne 0 ]; then
...
Command not found when using sudo
...he chmod documentation for your local system , run man chmod or info chmod from the command line. Once read and understood you should be able to understand the output of running ...
ls -l foo.sh
... which will list the READ, WRITE and EXECUTE permissions for the file owner, the group owner and ev...
Any idea why I need to cast an integer literal to (int) here?
...
The compiler tries to subtract 128 from (Integer) instead of casting -128 to Integer. Add () to fix it
Integer i3 = (Integer) -128; // doesn't compile
Integer i3 = (Integer) (-128); // compiles
According to BoltClock in the comments the cast to int works a...
ImportError: numpy.core.multiarray failed to import
...
If I do that, I get an error from cl.exe : cannot link a simple C program
– snoob dogg
Sep 24 '17 at 20:08
2
...
node.js global variables?
...)
or more usefully...
GLOBAL.window = GLOBAL; // like in the browser
From the node source, you can see that these are aliased to each other:
node-v0.6.6/src/node.js:
28: global = this;
128: global.GLOBAL = global;
In the code above, "this" is the global context. With the commonJS mo...
In what situations would AJAX long/short polling be preferred over HTML5 WebSockets?
...n to the server, sends request headers with optional data, gets a response from the server, and closes the connection.
Supported in all major browsers.
Long poll - request → wait → response. Creates a connection to the server like AJAX does, but maintains a keep-alive connection open for some t...