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Unsupported major.minor version 52.0 [duplicate]
... Project Structure → SDKs. Make sure the JDK home path is set to 1.8.
Restart IntelliJ IDEA.
Another approach which might help is by instructing IntelliJ IDEA which JDK version to start up with.
Go to: /Applications/IntelliJ\ IDEA\ 15\ CE.app/Contents/Info.plist
and replace the JVM version with:
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What does “%” (percent) do in PowerShell?
It seems that the % operation starts script blocks after the pipeline, although about_Script_Blocks indicates the % isn't necessary.
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Converting string into datetime
.../03/14 00:00:00 4496004880>
>>> (timestring.Range('next week').start.date, timestring.Range('next week').end.date)
(datetime.datetime(2014, 3, 10, 0, 0), datetime.datetime(2014, 3, 14, 0, 0))
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how does Array.prototype.slice.call() work?
...'t guarantee order. The algorithm used by .slice() defines a numeric order starting with 0 and ending (non-inclusive) with the .length of the given object (or Array or whatever). So the order is guaranteed to be consistent across all implementations.
– cookie monster
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Functional programming vs Object Oriented programming [closed]
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Heh, sorry if I started some flaming. I didn't mean to say other platforms are less powerfull, just that .NET doesn't only support OOP. For example it has tail call optimization.
– Dykam
Jan 16 '10 at 2...
Find unused npm packages in package.json
...the software jq. The below shell script requires a directory name where to start.
#!/bin/bash
DIRNAME=${1:-.}
cd $DIRNAME
FILES=$(mktemp)
PACKAGES=$(mktemp)
find . \
-path ./node_modules -prune -or \
-path ./build -prune -or \
\( -name "*.ts" -or -name "*.js" -or -name "*.json" \) -pr...
What does Python's eval() do?
...s such brought a level of protection into our system. At this point we can start to add back in functions that we do want exposed.
>>>from os import cpu_count
>>>exposed_methods = {'cpu_count': cpu_count}
>>>eval('cpu_count()', {'__builtins__':None}, exposed_methods)
8
&g...
Copying files from Docker container to host
... to STDOUT. This is similar to docker run -d except the container is never started.
So, you can do:
docker create -ti --name dummy IMAGE_NAME bash
docker cp dummy:/path/to/file /dest/to/file
docker rm -f dummy
Here, you never start the container. That looked beneficial to me.
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Exploring Docker container's file system
...ndex - you don't have a clue what the image contains so it's impossible to start the application.
26 Answers
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How to get current time and date in C++?
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#include <chrono>
#include <ctime>
int main()
{
auto start = std::chrono::system_clock::now();
// Some computation here
auto end = std::chrono::system_clock::now();
std::chrono::duration<double> elapsed_seconds = end-start;
std::time_t end_time = std::chr...