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Javascript object Vs JSON
...PHP), they can recreate the JavaScript object we had into their own object based on the JSON representation of the object.
It is important to note that JSON cannot represent functions or dates. If you attempt to stringify an object with a function member, the function will be omitted from the JSON ...
How to pass parameters correctly?
...angerous!
}
Also notice, that you normally do not resort to the template-based solution unless you have a good reason for it, as it makes your code harder to read. Normally, you should focus on clarity and simplicity.
The above are just simple guidelines, but most of the time they will point you ...
Git submodule update
...epo];
# update your submodule
git submodule update --remote
# or (with rebase)
git submodule update --rebase --remote
See "git submodule update --remote vs git pull".
MindTooth's answer illustrate a manual update (without local configuration):
git submodule -q foreach git pull -q origin maste...
Show pending migrations in rails
...migrations:
20090828200602 Test
Run "rake db:migrate" to update your database then try again.
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Ruby on Rails Server options [closed]
... EventMachine library. Other than using the Mongrel HTTP parser, it is not based on Mongrel in any way. Its cluster mode has no process monitoring so you need to monitor crashes etc. There is no Unicorn-like shared socket, so each process listens on its own socket. In theory, Thin's I/O model allows...
valueOf() vs. toString() in Javascript
...operands, and then decides if addition or concatenation should be applied, based on the type of each primitive.
So, this is how you think it works
a + b:
pa = ToPrimitive(a)
if(pa is string)
return concat(pa, ToString(b))
else
return add(pa, ToNumber(b))
and this is wha...
What does “coalgebra” mean in the context of programming?
...rmation Identity → f.
Now we can think about a monad as just an algebra based around some functor f with operations f ∘ f → f and Identity → f. Doesn't this look familiar? It's very similar to a monoid, which was just some type τ with operations τ × τ → τ and () → τ.
So a monad i...
Deleting folders in python recursively
...t for the next guy searching for a micropython solution, this works purely based on os (listdir, remove, rmdir). It is neither complete (especially in errorhandling) nor fancy, it will however work in most circumstances.
def deltree(target):
print("deltree", target)
for d in os.listdir(targ...
How to get the response of XMLHttpRequest?
...est with pure JavaScript. You can set custom header but it's optional used based on requirement.
1. Using POST Method:
window.onload = function(){
var request = new XMLHttpRequest();
var params = "UID=CORS&name=CORS";
request.onreadystatechange = function() {
if (this.read...
What is the purpose of the -m switch?
...ause its package will be loaded along the way. 3) Absolute imports will be based on your current directory, not the directory where the .py file is ('' is at the head of sys.path, rather than /path/to/my, if the script is at /path/to/my/script.py).
– clacke
Sep...