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How to access component methods from “outside” in ReactJS?
Why can’t I access the component methods from “outside” in ReactJS? Why is it not possible and is there any way to solve it?
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When should an IllegalArgumentException be thrown?
...icate that a method has been passed an illegal or inappropriate argument.
From looking at how it is used in the JDK libraries, I would say:
It seems like a defensive measure to complain about obviously bad input before the input can get into the works and cause something to fail halfway through wi...
How does functools partial do what it does?
...t my head on how the partial works in functools.
I have the following code from here :
7 Answers
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Why we should not use protected static in java
...g cleaner and allows the people sub-classing more flexibility. Quite apart from anything else in many cases composition is preferable to inheritance, while abstract classes force inheritance.
To see one example of how this could break things and to illustrate what I mean by the variable not having ...
How can you set class attributes from variable arguments (kwargs) in python
... self.B = True
# get a list of all predefined values directly from __dict__
allowed_keys = list(self.__dict__.keys())
# Update __dict__ but only for keys that have been predefined
# (silently ignore others)
self.__dict__.update((key, value) for key, val...
Can you remove elements from a std::list while iterating through it?
...+) and then remove the previous element (e.g., by using the returned value from i++). You can change the code to a while loop like so:
std::list<item*>::iterator i = items.begin();
while (i != items.end())
{
bool isActive = (*i)->update();
if (!isActive)
{
items.erase(...
How to extract the year from a Python datetime object?
I would like to extract the year from the current date using Python.
4 Answers
4
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Call Go functions from C
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You can call Go code from C. it is a confusing proposition though.
The process is outlined in the blog post you linked to. But I can see how that isn't very helpful. Here is a short snippet without any unnecessary bits. It should make things a ...
Update R using RStudio
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You install a new version of R from the official website.
RStudio should automatically start with the new version when you relaunch it.
In case you need to do it manually, in RStudio, go to :Tools -> options -> General.
Check @micstr's answer for ...
Strip HTML from Text JavaScript
...ce of the HTML (for example, don't run this on anything that could've come from user input). For those scenarios, you can still let the browser do the work for you - see Saba's answer on using the now widely-available DOMParser.
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