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Making 'git log' ignore changes for certain paths
...d empty Git repository in /tmp/tmp.cJm8k38G9y/.git/
$ mkdir aye bee
$ echo foo > aye/foo
$ git add aye/foo
$ git commit -m "First commit"
[master (root-commit) 46a028c] First commit
0 files changed
create mode 100644 aye/foo
$ echo foo > bee/foo
$ git add bee/foo
$ git commit -m "Second comm...
Resizing an iframe based on content
...as iframed, but never pages in which it is framed, e.g. if you have:
www.foo.com/home.html, which iframes
|-> www.bar.net/framed.html, which iframes
|-> www.foo.com/helper.html
then home.html can communicate with framed.html (iframed) and helper.html (same domain).
Communication o...
How and why does 'a'['toUpperCase']() in JavaScript work?
...
foo.bar and foo['bar'] are equal so the code you posted is the same as
alert('a'.toUpperCase())
When using foo[bar] (note tha lack of quotes) you do not use the literal name bar but whatever value the variable bar contains...
What is the use of ObservableCollection in .net?
...
class FooObservableCollection : ObservableCollection<Foo>
{
protected override void InsertItem(int index, Foo item)
{
base.Add(index, Foo);
if (this.CollectionChanged != null)
this.Collect...
How to profile a bash shell script slow startup?
... $EPOCHREALTIME\011 '
As pointed out by @pawamoy, you can use BASH_XTRACEFD to send the output of the trace to a separate file descriptor if you have Bash 4.1 or later. From this answer:
#!/bin/bash
exec 5> command.txt
BASH_XTRACEFD="5"
echo -n "hello "
set -x
echo -n world
set +x
echo "!"...
What does mysql error 1025 (HY000): Error on rename of './foo' (errorno: 150) mean?
I tried this in mysql:
14 Answers
14
...
What does “=>” mean in PHP?
...Note that this can be used for numerically indexed arrays too.
Example:
$foo = array('car', 'truck', 'van', 'bike', 'rickshaw');
foreach ($foo as $i => $type) {
echo "{$i}: {$type}\n";
}
// prints:
// 0: car
// 1: truck
// 2: van
// 3: bike
// 4: rickshaw
...
Why check both isset() and !empty()
...
This is completely redundant. empty is more or less shorthand for !isset($foo) || !$foo, and !empty is analogous to isset($foo) && $foo. I.e. empty does the reverse thing of isset plus an additional check for the truthiness of a value.
Or in other words, empty is the same as !$foo, but d...
Casting to string in JavaScript
...ut you can cast undefined to a string using the other two methods:
var foo;
var myString1 = String(foo); // "undefined" as a string
var myString2 = foo + ''; // "undefined" as a string
var myString3 = foo.toString(); // throws an exception
http://jsfiddle.net/f8YwA/
...
Difference between new and override
...r behaves by default as new keyword is used.
class A
{
public string Foo()
{
return "A";
}
public virtual string Test()
{
return "base test";
}
}
class B: A
{
public new string Foo()
{
return "B";
}
}
class C: B
{
public string ...