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Saving vim macros
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The :mkexrc (or :mkvimrc) command can be used to save all the current :map and :set settings to a file. See :help mkexrc for details.
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Determine which element the mouse pointer is on top of in JavaScript
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DEMO
There's a really cool function called document.elementFromPoint which does what it sounds like.
What we need is to find the x and y coords of the mouse and then call it using those values:
var x = event.clientX, y = event.clientY,
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Can promises have multiple arguments to onFulfilled?
I'm following the spec here and I'm not sure whether it allows onFulfilled to be called with multiple arguments. For example:
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How to calculate md5 hash of a file using javascript
...there are JS implementations of the MD5 algorithm, older browsers are generally unable to read files from the local filesystem.
I wrote that in 2009. So what about new browsers?
With a browser that supports the FileAPI, you *can * read the contents of a file - the user has to have selected it, eit...
Re-ordering columns in pandas dataframe based on column name [duplicate]
...f your column names won't sort lexicographically (e.g., if you want column Q10.3 to appear after Q9.1), you'll need to sort differently, but that has nothing to do with pandas.
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JavaScript null check
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@bfavaretto: Yep, so it might actually be a typo. But you never know… :D
– Ry-♦
May 21 '13 at 14:42
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How to list variables declared in script in bash?
... I have to make something to save them to file.
My question is how to list all variables declared in my script and get list like this:
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Bash script to calculate time elapsed
...d word should be displayed. The ‘%’ character introduces an
escape sequence that is expanded to a time value or other information.
The escape sequences and their meanings are as follows; the braces
denote optional portions.
%%
A literal ‘%’.
%[p][l]R
The elapsed time in seco...
Does SQLAlchemy have an equivalent of Django's get_or_create?
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That's basically the way to do it, there is no shortcut readily available AFAIK.
You could generalize it ofcourse:
def get_or_create(session, model, defaults=None, **kwargs):
instance = session.query(model).filter_by(**kwargs).firs...
WebSockets protocol vs HTTP
...kets is better for situations that involve low-latency communication especially for low latency for client to server messages. For server to client data you can get fairly low latency using long-held connections and chunked transfer. However, this doesn't help with client to server latency which req...