大约有 47,000 项符合查询结果（耗时：0.0753秒） [XML]
How to clear jQuery validation error messages?
... First of all, thanks! Had this working great for years, but now I've discovered a performance issue: showErrors does some DOM manipulation and it is called for every element in the form. The browser froze for a couple of seconds when using this code on a form with ~ 30 controls. Th...
Compare two data.frames to find the rows in data.frame 1 that are not present in data.frame 2
...;- data.frame(a = c(1:3, 1), b = c(letters[1:3], "c")). Leave a1 the same. Now try the comparison. It's not clear to me even in reading the options what the proper way is to list only common elements.
– Hendy
Aug 8 '13 at 2:59
...
Underlining text in UIButton
...
Good question @new2ios Perhaps someone else knows
– finneycanhelp
Apr 30 '15 at 12:54
1
...
Best way to handle list.index(might-not-exist) in python?
...
I know it can only be thrown from that method but is it guaranteed to only be thrown for that reason? Not that I can think of another reason index would fail..but then aren't exceptions for exactly those things you may not think...
Pretty-Print JSON Data to a File using Python
...None,
headers=None, force_auth_header=True)
# now write output to a file
twitterDataFile = open("twitterData.json", "w")
# magic happens here to make it pretty-printed
twitterDataFile.write(simplejson.dumps(simplejson.loads(output), indent=4, sort_keys=True))
twitterData...
What exactly is a C pointer if not a memory address?
...s perfectly legal per the language standard so long as the implementation knows how to transform those numbers into addresses and how to do pointer arithmetic with those numbers and all other things required by the standard.
– Alexey Frunze
Mar 1 '13 at 6:12
...
How to get scrollbar position with Javascript?
...ody in most modern browsers - it's usually set on document.documentElement now. See bugs.chromium.org/p/chromium/issues/detail?id=157855 for Chrome's transition.
– fzzfzzfzz
May 3 '18 at 15:51
...
How to check if UILabel is truncated?
...just saw my answer was upvoted, but the code snippet I gave is deprecated.
Now the best way to do this is (ARC) :
NSMutableParagraphStyle *paragraph = [[NSMutableParagraphStyle alloc] init];
paragraph.lineBreakMode = mylabel.lineBreakMode;
NSDictionary *attributes = @{NSFontAttributeName : mylabel....
How to implement Android Pull-to-Refresh
...rolling of a header view using smoothScrollBy (API Level 8). The widget is now updated with support for 1.5 and later, please read the README for 1.5 support though.
In your layouts you simply add it like this.
<com.markupartist.android.widget.PullToRefreshListView
android:id="@+id/android:...
Error: CUICatalog: Invalid asset name supplied: (null), or invalid scale factor : 2.000000
...
I didn't know about the $arg3 syntax for conditional breakpoints. Where can I learn more?
– Zev Eisenberg
Jun 2 '15 at 21:35
...