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jQuery callback on image load (even when the image is cached)
I want to do:
14 Answers
14
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git stash -> merge stashed change with current changes
... ...), then git stash apply (and, presumably, git stash pop) will actually do a proper merge. If there are no conflicts, you're golden. If not, resolve them as usual with git mergetool, or manually with an editor.
To be clear, this is the process I'm talking about:
mkdir test-repo && cd tes...
How do I rename a project in Xcode 5?
How do I rename a project in Xcode 5?
What steps do I need to take?
In the past this was always a very tricky manual process.
...
In PHP, how do you change the key of an array element?
... Yeah, great point Robin. Is there a way to keep the same order? Or do you need to create a new array to achieve that?
– Simon East
Jun 28 '12 at 1:19
42
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How do I access properties of a javascript object if I don't know the names?
... Did you just make that last one up and actually got away with it? Well done... =)
– nickl-
Sep 25 '12 at 15:03
Thi...
How do I best silence a warning about unused variables?
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You can put it in "(void)var;" expression (does nothing) so that a compiler sees it is used. This is portable between compilers.
E.g.
void foo(int param1, int param2)
{
(void)param2;
bar(param1);
}
Or,
#define UNUSED(expr) do { (void)(expr); } while (0)
....
What happens to C# Dictionary lookup if the key does not exist?
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Assuming you want to get the value if the key does exist, use Dictionary<TKey, TValue>.TryGetValue:
int value;
if (dictionary.TryGetValue(key, out value))
{
// Key was in dictionary; "value" contains corresponding value
}
else
{
// Key wasn't in dictiona...
Margin-Top push outer div down
...a top margin to a h1 inside the header div it pushes the entire header div down. I realize this happens whenever I apply a top margin to the first visible element on a page.
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In PHP, can you instantiate an object and call a method on the same line?
What I would like to do is something like this:
9 Answers
9
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write a shell script to ssh to a remote machine and execute commands
...h will execute the same set of commands in each machine. (Including some sudo operations). How can this be done using shell scripting?
You can do this with ssh, for example:
#!/bin/bash
USERNAME=someUser
HOSTS="host1 host2 host3"
SCRIPT="pwd; ls"
for HOSTNAME in ${HOSTS} ; do
ssh -l ${USERNAM...