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What is the best way to force yourself to master vi? [closed]
...learing up a lot of the misconceptions about vi, as well as explaining why it's a good idea (and why it's been very popular for the last 30 years+). The same guy also has a great set of graphical cheat sheets that teach the basics a few bits at a time.
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What are sessions? How do they work?
...hat they store some info in a key value pair on the browser. But I have a little confusion regarding sessions, in a session too we store data in a cookie on the user's browser.
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What is the difference between Hibernate and Spring Data JPA
...ng Data JPA is a JPA data access abstraction. Spring Data JPA cannot work without a JPA provider.
Spring Data offers a solution to the DDD Repository pattern or the legacy GenericDao custom implementations. It can also generate JPA queries on your behalf through method name conventions.
With Sprin...
Why doesn't Ruby support i++ or i-- (increment/decrement operators)?
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Here is how Matz(Yukihiro Matsumoto) explains it in an old thread:
Hi,
In message "[ruby-talk:02706] X++?"
on 00/05/10, Aleksi Niemelä <aleksi.niemela@cinnober.com> writes:
|I got an idea from http://www.pragprog.com:8080/rubyfaq/rubyfaq-5.html#ss5.3
|and t...
Run an untrusted C program in a sandbox in Linux that prevents it from opening files, forking, etc.?
...ce to sandbox untrusted programs both interactively and in automatic mode. It has a ptrace()-based backend which allows its use on a Linux system without special privileges, as well as a far faster and more poweful backend which requires patching the kernel.
It is also possible to create a sandbox ...
Is VB really case insensitive?
I'm not trying to start an argument here, but for whatever reason, it's typically stated that Visual Basic is case insensitive and C languages aren't (and somehow that is a good thing).
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typeof !== “undefined” vs. != null
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typeof is safer as it allows the identifier to never have been declared before:
if(typeof neverDeclared === "undefined") // no errors
if(neverDeclared === null) // throws ReferenceError: neverDeclared is not defined
...
Git rebase --continue complains even when all merge conflicts have been resolved
...l code in the patch beeing applied to the branch you are rebasing on. Use git rebase --skip to continue.
A bit more details:
Normally, when fixing a conflict during rebasing, you will edit the conflicting file, keeping some or all of the code in the patch currently being applied to the branch you...
Git Server Like GitHub? [closed]
I am a long time Subversion user that is going to try Git. I have read some about it and understand the distributed nature - I can see a lot of the benefits.
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Javascript what is property in hasOwnProperty?
...rns a boolean value indicating whether the object on which you are calling it has a property with the name of the argument. For example:
var x = {
y: 10
};
console.log(x.hasOwnProperty("y")); //true
console.log(x.hasOwnProperty("z")); //false
However, it does not look at the prototype chain o...