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Can you make just part of a regex case-insensitive?
... part of the regular expression. If you insert the modifier (?ism) in the middle of the regex, the modifier only applies to the part of the regex to the right of the modifier. You can turn off modes by preceding them with a minus sign. All modes after the minus sign will be turned off. E.g. (?i-sm) ...
Why does the C++ map type argument require an empty constructor when using []?
...place in C++11 as a terse alternative to insert.
– prideout
Nov 18 '14 at 19:32
3
Why is that std...
Why does Hibernate require no argument constructor?
... constructor to be able to instantiate the object. For most use cases, providing a no-arg constructor is not a problem.
There are hacks based on serialization that can work around not having a no-arg constructor, since serialization uses jvm magic to create objects without invoking the constructor....
When should I use @classmethod and when def method(self)?
... you realize that the definition of the method will not be changed or overriden.
An additional : teorically, class methods are faster then object methods, because don't need to be instantiated and need less memory.
share
...
datetime dtypes in pandas read_csv
...
Aside from the fact that this doesn't have the desired effect, it also doesn't work: AttributeError: type object 'datetime.datetime' has no attribute 'datetime'
– Gabriel
Dec 1 '16 at 9:29...
Html code as IFRAME source rather than a URL
...chnique would look something like this:
var iframe = document.getElementById('foo'),
iframedoc = iframe.contentDocument || iframe.contentWindow.document;
iframedoc.body.innerHTML = 'Hello world';
Example
Edit 2 (December 2017): use the Html5's srcdoc attribute, just like in Saurabh Chandr...
Open Graph namespace declaration: HTML with XMLNS or head prefix?
... Nothing will break right now, but relying on defaults is rarely a good idea when you can be explicit. If 2 years down the road we change the defaults, your site will break. Also, if you declare your namespaces directly it will help other parsers not just Facebook.
– Paul Ta...
Why can I create a class named “var”?
...it is a contextual keyword, so from the context the compiler is able to decide which is your class and which is the contextual keyword, and no confusion arises.
a contextual keyword is:
used to provide a specific meaning in the code, but it is not a
reserved word in C#.
so as its not reserv...
Applying function with multiple arguments to create a new pandas column
...rror. In that case, the @RomanPekar solution works without any problem. I didn't compare the performance.
– Ehsan Sadr
Feb 15 '19 at 1:55
...
Operation on every pair of element in a list
... var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
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