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Python, creating objects
...name = name
student.age = age
student.major = major
# Note: I didn't need to create a variable in the class definition before doing this.
student.gpa = float(4.0)
return student
I prefer the former, but there are instances where the latter can be useful – one being when worki...
Given final block not properly padded
...6, around 99.61%), because the padding has a special structure which is validated during unpad and very few keys would produce a valid padding.
So, if you get this exception, catch it and treat it as "wrong key".
This also can happen when you provide a wrong password, which then is used to get the...
Understanding dispatch_async
..._async(dispatch_get_global_queue( DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^(void){
//Background Thread
dispatch_async(dispatch_get_main_queue(), ^(void){
//Run UI Updates
});
});
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git switch branch without discarding local changes
...bly git stash (as all the other answer-ers
that beat me to clicking post said). Run git stash save or git stash push,1 or just plain git stash which is short for save / push:
$ git stash
This commits your code (yes, it really does make some commits) using
a weird non-branch-y method. The commit...
“X does not name a type” error in C++
...essageBox line, MyMessageBox has not yet been defined. The compiler has no idea MyMessageBox exists, so cannot understand the meaning of your class member.
You need to make sure MyMessageBox is defined before you use it as a member. This is solved by reversing the definition order. However, you hav...
How to concatenate and minify multiple CSS and JavaScript files with Grunt.js (0.3.x)
...s happen because they erase the requirejs syntatic ritual in order to get rid of requirejs in their code. So they end up with a standalone library that was developed with requirejs modules! Thanks to this they are able to perform cutsom builds of their libraries, among other advantages.
For all th...
How to implement if-else statement in XSLT?
...se statement in XSLT but my code just doesn't parse. Does anyone have any ideas?
5 Answers
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Why do we need message brokers like RabbitMQ over a database like PostgreSQL?
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Rabbit's queues reside in memory and will therefore be much faster than implementing this in a database. A (good)dedicated message queue should also provide essential queueing related features such as throttling/flow control, and the ability to...
When should I use std::thread::detach?
...
Use join
Unless you need to have more flexibility AND are willing to provide a synchronization mechanism to wait for the thread completion on your own, in which case you may use detach
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PHP random string generator
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@FranciscoPresencia do you have any idea how horrifically inefficient that is? You are checking the length of a string twice per iteration! The strlen inside the loop should be cached in a variable before entering the loop as well.
– devel...