大约有 36,010 项符合查询结果（耗时：0.0506秒） [XML]
How to check if activity is in foreground or in visible background?
...nditions are met.
The source also mentions two wrong solutions...so avoid doing that.
Source: stackoverflow
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UITextField border color
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In iOS 7 you must set a border width or the color does not take effect.
– Micah
Mar 26 '14 at 19:46
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How do I run git log to see changes only for a specific branch?
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How about a way to do this that doesn't require me to type/know the parent-branch? :)
– ELLIOTTCABLE
May 20 '13 at 22:40
2
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How to convert JSON data into a Python object
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UPDATE
With Python3, you can do it in one line, using SimpleNamespace and object_hook:
import json
from types import SimpleNamespace
data = '{"name": "John Smith", "hometown": {"name": "New York", "id": 123}}'
# Parse JSON into an object with attribute...
Library not loaded: /usr/local/opt/readline/lib/libreadline.6.2.dylib
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Be careful doing this if you aren't already on the latest version of Postgres. You'll need to reinstall the old Postgres alongside the new one and then do a pg_upgrade
– dazonic
Jan 2 '17 at 2:49
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What are deferred objects?
jQuery 1.5 adds "Deferred Objects". What are they, and what exactly do they do?
4 Answers
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Trigger a keypress/keydown/keyup event in JS/jQuery?
...ts with a direct call to them, like this:
$(function() {
$('item').keydown();
$('item').keypress();
$('item').keyup();
$('item').blur();
});
Does that do what you're trying to do?
You should probably also trigger .focus() and potentially .change()
If you want to trigger the key-...
How to print a debug log?
...mentionning that, btw you can also set the value of error_log to 'php://stdout' when debugging a console app and have the error messages appear straight to console, ie: error_log("You messed up!", 3, "php://stdout");
– stefgosselin
May 21 '11 at 12:38
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How to overload std::swap()
...found via argument-dependent lookup (ADL). One particularly easy thing to do is:
class X
{
// ...
friend void swap(X& a, X& b)
{
using std::swap; // bring in swap for built-in types
swap(a.base1, b.base1);
swap(a.base2, b.base2);
// ...
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Benefits of using the conditional ?: (ternary) operator
...rectified with better formatting. But, as the OP is recommending, it comes down to readability and terseness versus verbosity.
– Nathan Ernst
Jul 22 '10 at 22:41
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