大约有 7,000 项符合查询结果（耗时：0.0194秒） [XML]
How to allow only one radio button to be checked?
...l radio buttons have to have the same name:
<input type='radio' name='foo'>
Only 1 radio button of each group of buttons with the same name can be checked.
share
|
improve this answer
...
Set the value of a variable with the result of a command in a Windows batch file
...atch file you will need to write:
for /f "delims=" %%a in ('ver') do @set foobar=%%a
But, I instead suggest using Cygwin on your Windows system if you are used to Unix-type scripting.
share
|
im...
$(this).serialize() — How to add a value?
...
We can do like:
data = $form.serialize() + "&foo=bar";
For example:
var userData = localStorage.getItem("userFormSerializeData");
var userId = localStorage.getItem("userId");
$.ajax({
type: "POST",
url: postUrl,
data: $(form).serialize() + "&" + user...
Easy way to print Perl array? (with a little formatting)
.... Example:
use Data::Dumper;
# simple procedural interface
print Dumper($foo, $bar);
share
|
improve this answer
|
follow
|
...
What's a reliable way to make an iOS app crash?
...
I think in Swift you could easily throw a fatal error:
func foo() {
fatalError("crash!")
}
It is actually even intended to use this feature in case something goes wrong in order to make the app crash.
To avoid an if statement in a special case, you could use precondition, too. ...
Add new attribute (element) to JSON object using JavaScript
... you have to do is address it using the dot notation.
mything.NewField = 'foo';
share
|
improve this answer
|
follow
|
...
Remove by _id in MongoDB console
...
I've just bumped into this myself and this variation worked for me:
db.foo.remove({**_id**: new ObjectId("4f872685a64eed5a980ca536")})
share
|
improve this answer
|
foll...
SQL update query using joins
... the FROM clause. So im in this case is valid
Generic example
UPDATE A
SET foo = B.bar
FROM TableA A
JOIN TableB B
ON A.col1 = B.colx
WHERE ...
share
|
improve this answer
|
...
#define macro for debug printing in C?
...still works even if there are no arguments? For example:
debug_print("Foo");
There's one simple, old-fashioned hack:
debug_print("%s\n", "Foo");
The GCC-only solution shown below also provides support for that.
However, you can do it with the straight C99 system by using:
#define debug_...
How do I tell CPAN to install all dependencies?
...
From then on install modules by executing (as root if necessary)
cpanm Foo::Bar
share
|
improve this answer
|
follow
|
...