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What's the difference between Ruby's dup and clone methods?
...does not.
o = Object.new
def o.foo
42
end
o.dup.foo # raises NoMethodError
o.clone.foo # returns 42
Second, clone preserves the frozen state, while dup does not.
class Foo
attr_accessor :bar
end
o = Foo.new
o.freeze
o.dup.bar = 10 # succeeds
o.clone.bar = 10 # raises RuntimeError
The...
jQuery remove options from select
...').find('[value="' + responseYear + '"]').remove();
});
},
error: function (response) {
console.log("Error");
}
});
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Smarty中date_format日期格式化详解 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...围从 001 到 366）
%k - 小时，24 小时格式，没有前导零
%l - 小时，12 小时格式，没有前导零
%m - 十进制月份（范围从 01 到 12）
%M - 十进制分钟数
%n - 换行符
%p - 根据给定的时间值为 `am' 或 `pm'，或者当前区域设置中的相应字符...
Using ChildActionOnly in MVC
... request http://localhost:57803/home/mydatetime
The result will be Server Error like so:
This means you can not directly call the partial view. but it can be called via Index() view as in the Index.cshtml
@Html.Action("MyDateTime") // Calling the partial view: MyDateTime().
If you remo...
What key shortcuts are to comment and uncomment code?
There were Ctrl + E + C (comment) and Ctrl + E + U (uncomment) in older versions, or Ctrl + K + C and Ctrl + K + U .
...
How to inflate one view with a layout
...
I get an error: 02-25 22:21:19.324: ERROR/AndroidRuntime(865): Caused by: java.lang.IllegalStateException: The specified child already has a parent. You must call removeView() on the child's parent first.
– Micha...
Which timestamp type should I choose in a PostgreSQL database?
..._Angeles';
SET
test=> INSERT INTO my_tbl (my_timestamp) VALUES (NOW());
ERROR: new row for relation "my_tbl" violates check constraint "my_tbl_my_timestamp_check"
test=> SET timezone = 'UTC';
SET
test=> INSERT INTO my_tbl (my_timestamp) VALUES (NOW());
INSERT 0 1
It's not 100% perfect, b...
You need to use a Theme.AppCompat theme (or descendant) with this activity
...from @MarkKeen in the comments above as I had the same problem.
I had the error stated at the top of the post and happened after I added an alert dialog. I have all the relevant style information in the manifest. My problem was cured by changing a context reference in the alert builder - I changed:...
Does Flask support regular expressions in its URL routing?
...randrange
from werkzeug.routing import Rule, Map, BaseConverter, ValidationError
class BooleanConverter(BaseConverter):
def __init__(self, url_map, randomify=False):
super(BooleanConverter, self).__init__(url_map)
self.randomify = randomify
self.regex = '(?:yes|no|maybe...