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How do I combine two data frames?
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I believe you can use the append method
bigdata = data1.append(data2, ignore_index=True)
to keep their indexes just dont use the ignore_index keyword ...
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What are your favorite extension methods for C#? (codeplex.com/extensionoverflow)
Let's make a list of answers where you post your excellent and favorite extension methods .
150 Answers
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Adding event listeners to dynamically added elements using jQuery [duplicate]
So right now, I understand that in order to attach an event listener to a dynamically added element, you have to redefine the listener after adding the element.
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How do I empty an array in JavaScript?
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Ways to clear an existing array A:
Method 1
(this was my original answer to the question)
A = [];
This code will set the variable A to a new empty array. This is perfect if you don't have references to the original array A anywhere else because this actually creates a brand new ...
What is the difference between dict.items() and dict.iteritems() in Python2?
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It's part of an evolution.
Originally, Python items() built a real list of tuples and returned that. That could potentially take a lot of extra memory.
Then, generators were introduced to the language in general, and that method was reimplemented as ...
Stop setInterval
I want to stop this interval in the error handler from running repeatedly. Is that possible, and if so, how?
6 Answers
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In PHP, what is a closure and why does it use the “use” identifier?
... and a reference to $total) outside of it scope and preserve their values (or in the case of $total the reference to $total itself) as state within the anonymous function itself.
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boundingRectWithSize for NSAttributedString returning wrong size
I am trying to get the rect for an attributed string, but the boundingRectWithSize call is not respecting the size I pass in and is returning a rect with a single line height as opposed to a large height (it is a long string). I have experimented by passing in a very large value for the height and a...
Run single test from a JUnit class using command-line
...nner fairly easily. Here's one that will run a single test method in the form com.package.TestClass#methodName:
import org.junit.runner.JUnitCore;
import org.junit.runner.Request;
import org.junit.runner.Result;
public class SingleJUnitTestRunner {
public static void main(String... args) thro...
How to make an ImageView with rounded corners?
...ctangle by default. How can I make it a rounded rectangle (clip off all 4 corners of my Bitmap to be rounded rectangles) in the ImageView?
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