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Explanation of the UML arrows
...able direction. You can use
this to indicate navigability of links and database relations in the software.
Generalization: Generalization means that the specializing or derived type inherits attributes,
operations, and associations of the general or base type. The general type appears at the arro...
Using two values for one switch case statement
...pression. The following code example, ,
displays the number of the month based on the value of the String
named month:
public class StringSwitchDemo {
public static int getMonthNumber(String month) {
int monthNumber = 0;
if (month == null) {
return monthNumbe...
Obstructed folders in Subversion
...
Good God, I was trying to commit based on a copy of this project that I had on my external drive, not the working copy from my local drive. Duh.
– PositiveGuy
May 20 '09 at 22:23
...
How can I use a file in a command and redirect output to the same file without truncating it?
...
Or sudo apt-get install moreutils on Debian-based systems.
– Jonah
Aug 15 '14 at 16:45
3
...
Checking if a blob exists in Azure Storage
...ow do that -- and check the response.
The core Azure APIs are RESTful XML-based HTTP interfaces. The StorageClient library is one of many possible wrappers around them. Here's another that Sriram Krishnan did in Python:
http://www.sriramkrishnan.com/blog/2008/11/python-wrapper-for-windows-azure.ht...
uncaught syntaxerror unexpected token U JSON
... error while working with File Upload..
We were using middleware for token based encryption - decryption and we encountered same error.
Following was our code in route file:
router.route("/uploadVideoMessage")
.post(
middleware.checkToken,
upload.single("video_file"),
videoMessageCon...
Defining an array of anonymous objects in CoffeeScript
... Isn't that so ugly :( Coffeescript is really nice for it's indent based coding but for large object literals it's not much better than standard JSON as you have to balance up all the brackets and you end up with nasty trailing bracket soup. There was a ticket to resolve this and use YAML sy...
JavaScript variable assignments from tuples
...
This is not standards-based javascript, but rather Mozilla-specific extensions.
– ninjagecko
Apr 24 '12 at 12:41
14
...
How to access command line parameters?
...Rust, a macro can be used to automatically generate the struct and do type based decoding:
docopt!(Args, "
Usage: cp [-a] SOURCE DEST
cp [-a] SOURCE... DIR
Options:
-a, --archive Copy everything.
")
And you can get the args with:
let args: Args = Args::docopt().decode().unwrap_or_el...
PostgreSQL: Show tables in PostgreSQL
...
From the psql command line interface,
First, choose your database
\c database_name
Then, this shows all tables in the current schema:
\dt
Programmatically (or from the psql interface too, of course):
SELECT * FROM pg_catalog.pg_tables;
The system tables live in the pg_catalo...