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Why is using “for…in” for array iteration a bad idea?
...e array.
for (var i = 0; i < a.length; i++) {
// Iterate over numeric indexes from 0 to 5, as everyone expects.
console.log(a[i]);
}
/* Will display:
undefined
undefined
undefined
undefined
undefined
5
*/
can sometimes be totally different from the...
PHP 5: const vs static
...ect) scope, but unlike a const, their values can be changed.
class ClassName {
static $my_var = 10; /* defaults to public unless otherwise specified */
const MY_CONST = 5;
}
echo ClassName::$my_var; // returns 10
echo ClassName::MY_CONST; // returns 5
ClassName::$my_var = 20; // now e...
Linking static libraries to other static libraries
...ry from the subset of the .o files that contain them. This is difficult, time consuming and error prone. I'm not aware of any tools to help do this (not to say they don't exist), but it would make quite an interesting project to produce one.
...
How do I prevent 'git diff' from using a pager?
... a single screen.
Usage:
git --no-pager diff
Other options from the comments include:
# Set an evaporating environment variable to use 'cat' for your pager
GIT_PAGER=cat git diff
# Tells 'less' not to paginate if less than a page
export LESS="-F -X $LESS"
# ...then Git as usual
git diff
...
Remove grid, background color, and top and right borders from ggplot2
I would like to reproduce the plot immediately below by using ggplot2. I can come close, but cannot remove the top and right borders. Below I present several attempts using ggplot2, including several suggestions found on or via Stackoverflow. Unfortunately I have not been able to get those sugges...
What's the difference between the Dependency Injection and Service Locator patterns?
Both patterns seem like an implementation of the principle of inversion of control. That is, that an object should not know how to construct its dependencies.
...
Learning Ant path style
...
Ant-style path patterns matching in spring-framework:
The mapping matches URLs using the following rules:
? matches one character
* matches zero or more characters
** matches zero or more 'directories' in a path
{spring:[a-z]+} matches the regexp [a-z]+ as a path varia...
Can you write virtual functions / methods in Java?
Is it possible to write virtual methods in Java, as one would do in C++?
6 Answers
6...
Disable intellij indexing on specific folder
...
As I've mentioned above, I did it, but it's not helping.
– Marcin Szymaniuk
Jul 1 '11 at 9:08
4
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How do CSS triangles work?
...sika, you can add these triangles into a page without adding additional elements simply by using :before or :after pseudo classes.
– zzzzBov
Aug 16 '11 at 13:24
...