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Is arr.__len__() the preferred way to get the length of an array in Python?
...ust arrays of characters:
my_string = 'hello world'
len(my_string)
# 11
It was intentionally done this way so that lists, tuples and other container types or iterables didn't all need to explicitly implement a public .length() method, instead you can just check the len() of anything that implemen...
how to delete all cookies of my website in php
I'm wondering if I can delete all my website's cookies when a user click on logout, because I used this as function to delete cookies but it isn't work properly:
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How to clean project cache in Intellij idea like Eclipse's clean?
...
Depending on the version you are running. It is basically the same just go to
File -> Invalidate caches, then restart Intellij
or
File -> Invalidate caches / Restart
The main difference is that in older versions you had to manually restart as cache files are ...
Is null reference possible?
...
References are not pointers.
8.3.2/1:
A reference shall be initialized to
refer to a valid object or function.
[Note: in particular, a null reference
cannot exist in a well-defined
program, because the only way to
create such a reference would be to
bind it to the “object...
Understanding repr( ) function in Python
repr() : evaluatable string representation of an object (can "eval()"
it, meaning it is a string representation that evaluates to a Python
object)
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push_back vs emplace_back
I'm a bit confused regarding the difference between push_back and emplace_back .
7 Answers
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What are the most common naming conventions in C?
...static and skip the module prefix, so if gtk_widget_show() was a function with file scope it would become simply widget_show() with static storage class added.
– August Karlstrom
Aug 15 '13 at 14:28
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Long Press in JavaScript?
Is it possible to implement "long press" in JavaScript (or jQuery)? How?
19 Answers
19...
SSL Error: CERT_UNTRUSTED while using npm command
...sonally I believe bypassing https is not the real solution, but we can use it as a workaround.
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Proper usage of Optional.ifPresent()
...Present() takes a Consumer<? super User> as argument. You're passing it an expression whose type is void. So that doesn't compile.
A Consumer is intended to be implemented as a lambda expression:
Optional<User> user = ...
user.ifPresent(theUser -> doSomethingWithUser(theUser));
O...