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What is hashCode used for? Is it unique?
...return a sequence of number. Can I use this hashcode to identify an item? For example I want to identify a picture or a song in the device, and check it whereabout. This could be done if the hashcode given for specific items is unique.
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In plain English, what does “git reset” do?
...ch and reset it to point somewhere else, and possibly bring the index and work tree along. More concretely, if your master branch (currently checked out) is like this:
- A - B - C (HEAD, master)
and you realize you want master to point to B, not C, you will use git reset B to move it there:
- A ...
node.js child process - difference between spawn & fork
...execute any further code within your node process. You can add listeners for the process you have spawned, to allow your code interact with the spawned process, but no new V8 instance is created(unless of course your command is another Node command, but in this case you should use fork!) and only o...
How to Sync iPhone Core Data with web server, and then push to other devices? [closed]
I have been working on a method to sync core data stored in an iPhone application between multiple devices, such as an iPad or a Mac. There are not many (if any at all) sync frameworks for use with Core Data on iOS. However, I have been thinking about the following concept:
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Scanner vs. StringTokenizer vs. String.Split
...r and String.Split. I know that the StringTokenizer and String.Split only work on Strings, so why would I want to use the Scanner for a String? Is Scanner just intended to be one-stop-shopping for spliting?
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How to convert DOS/Windows newline (CRLF) to Unix newline (LF) in a Bash script?
... # Unix to DOS
However, if you're going to have to do this very often (more than once, roughly speaking), it is far more sensible to install the conversion programs (e.g. dos2unix and unix2dos, or perhaps dtou and utod) and use them.
If you need to process entire directories and subdirectories, ...
Ruby: require vs require_relative - best practice to workaround running in both Ruby =1.
...ractice if I want to require a relative file in Ruby and I want it to work in both 1.8.x and >=1.9.2?
11 Answers
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client secret in OAuth 2.0
...e my views on the subject in the answer.
Yes there is a real possibility for this and there were some exploits based on this. Suggestion is not to keep the app secret in your app, there is even part in the spec that distributed apps should not use this token. Now you might ask, but XYZ requires it ...
How do you grep a file and get the next 5 lines
How do I grep a file for 19:55 and get the Line 1,2,3,4,5?
3 Answers
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How to process POST data in Node.js?
How do you extract form data ( form[method="post"] ) and file uploads sent from the HTTP POST method in Node.js ?
28 Ans...