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Where does Java's String constant pool live, the heap or the stack?
...ly neither. According to the Java Virtual Machine Specification, the area for storing string literals is in the runtime constant pool. The runtime constant pool memory area is allocated on a per-class or per-interface basis, so it's not tied to any object instances at all. The runtime constant po...
When to use a “has_many :through” relation in Rails?
...
What if you wanted to track additional metadata around the association? For example, when the user joined the group, or perhaps what the user's role is in the group?
This is where you make the association a first class object:
class GroupMembership < ActiveRecord::Base
belongs_to :user
b...
How to commit changes to a new branch
... since I got the new-branch from git checkout v3.0(the branch before I made changes) new-branch, Do I still require to use "git add <files>"?
– user1988385
Feb 1 '13 at 22:18
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SVG: text inside rect
... .attr('stroke', 'black')
text = svg.append('text').text('This is some information about whatever')
.attr('x', 50)
.attr('y', 150)
.attr('fill', 'black')
share
|
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What's the difference between BaseAdapter and ArrayAdapter?
...it working.
ArrayAdapter is a more complete implementation that works well for data in arrays or ArrayLists. Similarly, there is a related CursorAdapter that you should use if your data is in a Cursor. Both of these extend BaseAdapter.
If your data is in a specialized collection of some sort or if...
How to know if user is logged in with passport.js?
I've been reading passport.js info and samples for two days, but I'm not sure after that I did all the process of authenticating.
...
What is the closest thing Windows has to fork()?
...
Cygwin has fully featured fork() on Windows. Thus if using Cygwin is acceptable for you, then the problem is solved in the case performance is not an issue.
Otherwise you can take a look at how Cygwin implements fork(). From a quite old Cygwin's arch...
Accessing private member variables from prototype-defined functions
...ch the prototype methods (along with everything else) will have access to. For example:
function Person(name, secret) {
// public
this.name = name;
// private
var secret = secret;
// public methods have access to private members
this.setSecret = function(s) {
secre...
Is a Python dictionary an example of a hash table?
... structures in Python is the dictionary, which allows one to record "keys" for looking up "values" of any type. Is this implemented internally as a hash table? If not, what is it?
...
Regex exactly n OR m times
...y is the ?: needed in the if m = 2n example? Seems to work fine without it for me.
– erb
Jun 18 '15 at 8:42
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