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jQuery .live() vs .on() method for adding a click event after loading dynamic html
...er on a parent object (that does not get loaded dynamically) and give it a selector that matches your dynamic object like this:
$('#parent').on("click", "#child", function() {});
The event handler will be attached to the #parent object and anytime a click event bubbles up to it that originated on...
UITextField text change event
...ntrol.
In Objective-C:
[textField addTarget:self
action:@selector(textFieldDidChange:)
forControlEvents:UIControlEventEditingChanged];
In Swift:
textField.addTarget(self, action: #selector(textFieldDidChange), for: .editingChanged)
Then in the textFieldDidChange method...
How do you query for “is not null” in Mongo?
..., the query returns only the documents that do not contain the field.
$ne selects the documents where the value of the field is not equal to the specified value. This includes documents that do not contain the field.
So in your provided case following query going to return all the documents with i...
How do I convert a String object into a Hash object?
...
This answer should be selected for avoiding using eval.
– Michael_Zhang
Sep 4 '18 at 21:57
4
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MongoDB: How to update multiple documents with a single command?
...{field1: 'field1', field2: 'field2'})
New in version 3.2
Params::
{}: select all records updated
Keyword argument multi not taken
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I do not want to inherit the child opacity from the parent in CSS
...ame, but defined exclusively (e.g. to overwrite the user agent styles of a select dropdown):
.parent {
background-color: rgba(0,0,0,0.5);
}
.child {
background-color: rgba(128,128,128,0);
}
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How do you set a default value for a MySQL Datetime column?
...test (str) values ("demo");
Query OK, 1 row affected (0.00 sec)
mysql> select * from test;
+------+---------------------+
| str | ts |
+------+---------------------+
| demo | 2008-10-03 22:59:52 |
+------+---------------------+
1 row in set (0.00 sec)
mysql>
**CAVEAT: IF...
What is a clean, pythonic way to have multiple constructors in Python?
...sing __new__.
This could be used if the type of initialization cannot be selected based on the type of the constructor argument, and the constructors do not share code.
Example:
class MyClass(set):
def __init__(self, filename):
self._value = load_from_file(filename)
@classmeth...
Replace all spaces in a string with '+' [duplicate]
...
This selected solution is slower on large replacement compared to the reg expression version. Test with the 3 solutions posted: jsbin.com/isadi3/2 Firefox has minimal timing difference, IE has a noticeable difference. So if speed ...
How can I redirect HTTP requests made from an iPad?
...oding: gzip, deflate
Connection: keep-alive
Weblock is also good to selectively redirect some URL's with regular expressions.
You could redirect queries to certain endpoint only, while all other queries go to the IP returned from the DNS. This actually allows for even more fitting configurati...