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Test if a vector contains a given element
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521
Both the match() (returns the first appearance) and %in% (returns a Boolean) functions are desi...
Programmatically change log level in Log4j2
I'm interested in programmatically changing the log level in Log4j2. I tried looking at their configuration documentation but that didn't seem to have anything. I also tried looking in the package: org.apache.logging.log4j.core.config , but nothing in there looked helpful either.
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NameError: global name 'xrange' is not defined in Python 3
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You are trying to run a Python 2 codebase with Python 3. xrange() was renamed to range() in Python 3.
Run the game with Python 2 instead. Don't try to port it unless you know what you are doing, most likely there will be more problems beyond xrange() vs. ...
Simultaneously merge multiple data.frames in a list
... but they all share the key variables (which I've called "var1" and "var2" in the code below). If the data.frames were identical in terms of columns, I could merely rbind , for which plyr's rbind.fill would do the job, but that's not the case with these data.
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Check whether number is even or odd
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You can use the modulus operator, but that can be slow. If it's an integer, you can do:
if ( ...
Passing a std::array of unknown size to a function
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edited Jun 17 '13 at 20:36
answered Jun 17 '13 at 20:30
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ESP8285接入App Inventor 2深度调研：4种连接方案+是否需要开发拓展 - 创客...
ESP8285接入App Inventor 2深度调研：连接方案与拓展评估
本文基于MIT App Inventor源码、fun123自研拓展源码、以及ESP8285官方数据手册，深度调研ESP8285芯片接入App Inventor 2的所有可行路径。
一、ESP8285芯片概述
ESP8285是乐鑫(Espressif)...
How to count total lines changed by a specific author in a Git repository?
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24 Answers
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TypeScript sorting an array
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answered Feb 10 '14 at 21:08
SLaksSLaks
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Get the week start date and week end date from week number
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You can find the day of week and do a date add on days to get the start and end dates..
DATEADD...