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emacs/elisp: What is the hash (pound, number sign, octothorp) symbol used for?
... printed is a description (but cannot be read). For example:
#<buffer foo.txt>
It is also used in constructs by the reader to represent circular structures. See the docs for Read Syntax for Circular Objects.
And then you have its use for denoting the base for integers, e.g. #x2c -> 44...
virtualenv --no-site-packages and pip still finding global packages?
... My hero! If you just want to check if that is your issue really quickly, you can run printenv to see if PYTHONPATH is there, and if it is, run unset PYTHONPATH. You'll still have to go track down the problem if you don't want the issue to pop up anymore, but that'll let you get a fr...
What's the difference between “Request Payload” vs “Form Data” as seen in Chrome dev tools Network t
... - or to be more precise: payload body of a HTTP Request
- is the data normally send by a POST or PUT Request.
It's the part after the headers and the CRLF of a HTTP Request.
A request with Content-Type: application/json may look like this:
POST /some-path HTTP/1.1
Content-Type: application/json
...
Difference between console.log() and console.debug()?
...e.log.apply(this, arguments);
};
console.debugging = true;
console.debug('Foo', {age:41, name:'Jhon Doe'});
Foo&blacktriangleright; {age: 41, name: "Jhon Doe"}
console.debugging = false;
console.debug('Foo', {age:26, name:'Jane Doe'});
No output
However I havent figured a way to c...
What should I do if two libraries provide a function with the same name generating a conflict?
...either of them you can wrap one of them up. That is compile another (statically linked!) library that does nothing except re-export all the symbols of the original except the offending one, which is reached through a wrapper with an alternate name. What a hassle.
Added later: Since qeek says he's ta...
How can I change or remove HTML5 form validation default error messages?
...
Very nice answer. But as with all things HTML5, reliability depends upon the browser. This solution worked great with FF 15 and Chrome 22, but not with Safari 5. (Tested with OS X Lion)
– james.garriss
Oct 8 '12 at...
Getting a list of files in a directory with a glob
...ing operations for you. The functions and types are declared in a header called glob.h, so you'll need to #include it. If open up a terminal an open the man page for glob by typing man 3 glob you'll get all of the information you need to know to use the functions.
Below is an example of how you c...
Array Size (Length) in C#
...ts out in the comments, there is a concept of a "jagged array", which is really nothing more than a single-dimensional array of (typically single-dimensional) arrays.
For example, one could have the following:
int[][] c = new int[3][];
c[0] = new int[] {1, 2, 3};
c[1] = new int[] {3, 14};
c[2] = ...
Difference between app.use and app.get in express.js
...nt" path, app.use() will respond to any path that starts with /, which are all of them and regardless of HTTP verb used:
GET /
PUT /foo
POST /foo/bar
etc.
app.get(), on the other hand, is part of Express' application routing and is intended for matching and handling a specific route when request...
Why does X[Y] join of data.tables not allow a full outer join, or a left join?
...Y) does both ways at the same time. The number of rows of X[Y] and Y[X] usually differ, whereas the number of rows returned by merge(X,Y) and merge(Y,X) is the same.
BUT that misses the main point. Most tasks require something to be done on the
data after a join or merge. Why merge all the co...