大约有 12,000 项符合查询结果（耗时：0.0488秒） [XML]
Commenting in a Bash script inside a multiline command
... works fine. So too does cat file1 && # comment<newline>echo foo. So comments can be included after | or && or ||, but not after `\` or in the middle of a command.
– dubiousjim
Jan 12 '13 at 22:53
...
How to perform Callbacks in Objective-C
...ust meant, in you're .m file. You'd have a separate class, let's call it "Foo". Foo would have a "MyClass *myClass" variable, and at some point Foo would say "[myClass setDelegate:self]". At any point after that, if anyone including foo invoked the doSomethingMethod on that instance of MyClass, foo...
How do I check whether a jQuery element is in the DOM?
...
Like this:
if (!jQuery.contains(document, $foo[0])) {
//Element is detached
}
This will still work if one of the element's parents was removed (in which case the element itself will still have a parent).
...
What does the Subversion status symbol “~” mean?
...ails when it can't write the .svn directory. Here's the easy solution.
mv foo foo-bak
svn up foo
svn revert foo
# just for good measure. Foo should not show up in the two following commands.
ls | grep foo
svn st | grep foo
mv foo-bak foo
svn add foo
...
Difference between git pull and git pull --rebase
... something like this (we'll use a remote called origin and a branch called foo in all these examples):
# assume current checked out branch is "foo"
git fetch origin
git merge origin/foo
At first glance, you might think that a git pull --rebase does just this:
git fetch origin
git rebase origin/foo
...
vim, switching between files rapidly using vanilla Vim (no plugins)
...stands for "any subdirectory".
Combining all of that, you can do:
:e **/*foo<Tab>
to choose from all the files containing foo in their name under the working directory or:
:e **/*foo/*bar<Tab>
to choose from all the files containing bar in their name under any subdirectory contain...
How can I get Express to output nicely formatted HTML?
...var jade_string = [
"!!! 5",
"html",
" body",
" #foo I am a foo div!"
].join("\n");
var fn = jade.compile(jade_string, { pretty: true });
console.log( fn() );
...gets you this:
<!DOCTYPE html>
<html>
<body>
<div id="foo">I am a foo div!
...
private[this] vs private
...or each instance.
This becomes more clear in the following example:
class Foo(foo:Foo){
private[this] val i = 2
println(this.i + foo.i)
}
>>error: value i is not a member of Foo
class Foo(foo:Foo){
private val i = 2
println(this.i + foo.i)
}
>>defined class Foo
As...
Converting an integer to a string in PHP
...
$foo = 5;
$foo = $foo . "";
Now $foo is a string.
But, you may want to get used to casting. As casting is the proper way to accomplish something of that sort:
$foo = 5;
$foo = (string)$foo;
Another way is to encapsulate...
Finding the index of an item in a list
Given a list ["foo", "bar", "baz"] and an item in the list "bar" , how do I get its index ( 1 ) in Python?
31 Answers
...