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setState vs replaceState in React.js
...t case.
If your current state is {a: 1}, and you call this.setState({b: 2}); when the state is applied, it will be {a: 1, b: 2}. If you called this.replaceState({b: 2}) your state would be {b: 2}.
Side note: State isn't set instantly, so don't do this.setState({b: 1}); console.log(this.state) w...
Get querystring from URL using jQuery [duplicate]
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532
From: http://jquery-howto.blogspot.com/2009/09/get-url-parameters-values-with-jquery.html
This ...
Prepend a level to a pandas MultiIndex
...:13
cs95
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answered Feb 7 '17 at 16:11
okartalokart...
Group query results by month and year in postgresql
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227
select to_char(date,'Mon') as mon,
extract(year from date) as yyyy,
sum("Sales")...
Complete Working Sample of the Gmail Three-Fragment Animation Scenario?
...rs
Explaination:
Created a new custom RelativeLayout(ThreeLayout) and 2 custom Animations(MyScalAnimation, MyTranslateAnimation)
ThreeLayout gets the weight of the left pane as param ,assuming the other visible view has weight=1.
So new ThreeLayout(context,3) creates a new view with 3 childre...
Measuring text height to be drawn on Canvas ( Android )
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edited Nov 13 '17 at 20:27
Alon
31222 silver badges1616 bronze badges
answered Sep 27 '10 at 15:02
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How do I remove a submodule?
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2263
Since git1.8.3 (April 22d, 2013):
There was no Porcelain way to say "I no longer am inter...
What's the function like sum() but for multiplication? product()?
... return reduce(operator.mul, iterable, 1)
>>> prod(range(1, 5))
24
Note, in Python 3, the reduce() function was moved to the functools module.
Specific case: Factorials
As a side note, the primary motivating use case for prod() is to compute factorials. We already have support for that ...
How do I get the full path of the current file's directory?
...rent working directory:
import pathlib
pathlib.Path().absolute()
Python 2 and 3
For the directory of the script being run:
import os
os.path.dirname(os.path.abspath(__file__))
If you mean the current working directory:
import os
os.path.abspath(os.getcwd())
Note that before and after file ...
System.MissingMethodException: Method not found?
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