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NOT using repository pattern, use the ORM as is (EF)
... syntax?
LINQ and EF were developed so you could do neat stuff with it to read and traverse object graphs. Creating and maintain a repository that can give you the same flexibility to do that is a monstrous task. In my experience any time I've created a repository I've ALWAYS had business logic lea...
What does $.when.apply($, someArray) do?
I'm reading about Deferreds and Promises and keep coming across $.when.apply($, someArray) . I'm a little unclear on what this does exactly, looking for an explanation that one line works exactly (not the entire code snippet). Here's some context:
...
How to import CSV file data into a PostgreSQL table?
...csv/ZIP_CODES.txt' DELIMITER ',' CSV
You can also specify the columns to read:
\copy zip_codes(ZIP,CITY,STATE) FROM '/path/to/csv/ZIP_CODES.txt' DELIMITER ',' CSV
See the documentation for COPY:
Do not confuse COPY with the psql instruction \copy. \copy invokes COPY FROM STDIN or COPY TO ST...
What is the difference between Hibernate and Spring Data JPA
...:
JPA : Java persistence api which provide specification for persisting, reading, managing data from your java object to relations in database.
Hibernate: There are various provider which implement jpa. Hibernate is one of them. So we have other provider as well. But if using jpa with spring it al...
Idiomatic way to wait for multiple callbacks in Node.js
...have a look at why promises.
You should use promises to turn this:
fs.readFile("file.json", function (err, val) {
if (err) {
console.error("unable to read file");
}
else {
try {
val = JSON.parse(val);
console.log(val.success);
}
...
Spring - @Transactional - What happens in background?
...pic. The Spring reference doc devotes multiple chapters to it. I recommend reading the ones on Aspect-Oriented Programming and Transactions, as Spring's declarative transaction support uses AOP at its foundation.
But at a very high level, Spring creates proxies for classes that declare @Transaction...
Extracting the last n characters from a ruby string
...
+1... I think this way is easier to read than string.reverse[0..n].reverse, which gives me a second of "wait, why is he doing that?" (or would if I weren't reading it in the context of this question)
– Arkaaito
Feb 1 '10 a...
How to get last items of a list in Python?
..., like a string) would look like this:
num_list[-9:]
When I see this, I read the part in the brackets as "9th from the end, to the end." (Actually, I abbreviate it mentally as "-9, on")
Explanation:
The full notation is
sequence[start:stop:step]
But the colon is what tells Python you're giv...
How to install PostgreSQL's pg gem on Ubuntu?
...ou want to continue? [Y/n/?] Y Writing extended state information... Done (Reading database ... 166183 files and directories currently installed.) Removing bison ... Removing libnss3-dev ... Removing libnspr4-dev ... Removing libqt4-core ... Removing libqt4-test ... Removing libsqlite3-dev ... Proce...
How to detect iPhone 5 (widescreen devices)?
...o your views can adjust, and adapt any screen size.
That's not very hard, read some documentation about that. It will save you a lot of time.
iOS 6 also offers new features about this.
Be sure to read the iOS 6 API changelog on Apple Developer website.
And check the new iOS 6 AutoLayout capabiliti...