大约有 36,010 项符合查询结果(耗时:0.0375秒) [XML]
jQuery Determine if a matched class has a given id
...a string selector:
$(".bar:first").is("#foo"); // TRUE if first '.bar' in document is also '#foo'
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How to place the ~/.composer/vendor/bin directory in your PATH?
...ssages everything I try. I'm now trying the first method in the quickstart documentation, that is, via Laravel Installer, but it says to "Make sure to place the ~/.composer/vendor/bin directory in your PATH so the Laravel executable is found when you run the Laravel command in your terminal." so...
Is it possible in Java to access private fields via reflection [duplicate]
...void main(String[] args)
// Just for the ease of a throwaway test. Don't
// do this normally!
throws Exception
{
Other t = new Other();
t.setStr("hi");
Field field = Other.class.getDeclaredField("str");
field.setAccessible(true);
Ob...
How to navigate to a directory in C:\ with Cygwin?
...The last step to installing Sip is to use the make install command. Windows doesn't have that, so I looked it up and everything I saw said to install Cygwin. So I did. But...sip is in C:\Python31\sip .
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How to force the browser to reload cached CSS/JS files?
...o_version($file)
{
if(strpos($file, '/') !== 0 || !file_exists($_SERVER['DOCUMENT_ROOT'] . $file))
return $file;
$mtime = filemtime($_SERVER['DOCUMENT_ROOT'] . $file);
return preg_replace('{\\.([^./]+)$}', ".$mtime.\$1", $file);
}
Now, wherever you include your CSS, change it from this:...
Determine if string is in list in JavaScript
...
You can call indexOf:
if (['a', 'b', 'c'].indexOf(str) >= 0) {
//do something
}
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Merging: Hg/Git vs. SVN
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I do not use Subversion myself, but from the release notes for Subversion 1.5: Merge tracking (foundational) it looks like there are the following differences from how merge tracking work in full-DAG version control systems lik...
Can anyone explain IEnumerable and IEnumerator to me? [closed]
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for example, when to use it over foreach?
You don't use IEnumerable "over" foreach. Implementing IEnumerable makes using foreach possible.
When you write code like:
foreach (Foo bar in baz)
{
...
}
it's functionally equivalent to writing:
IEnumerator bat = baz.G...
How to select rows from a DataFrame based on column values?
...value of a Series is ambiguous error.
To select rows whose column value does not equal some_value, use !=:
df.loc[df['column_name'] != some_value]
isin returns a boolean Series, so to select rows whose value is not in some_values, negate the boolean Series using ~:
df.loc[~df['column_name'].i...
cancelling a handler.postdelayed process
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I do this to post a delayed runnable:
myHandler.postDelayed(myRunnable, SPLASH_DISPLAY_LENGTH);
And this to remove it: myHandler.removeCallbacks(myRunnable);
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