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What does `node --harmony` do?
...cript 6 features in older version of nodejs, you can use --harmony flag.
Latest version of node supports ES6 so no need of --harmony flag
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Best way to use html5 data attributes with rails content_tag helper?
...abel", {:action => blub}, {:data => {:foo => :bar}, :class => "test"}
– reto
May 25 '12 at 9:41
This works...
图表组件 · App Inventor 2 中文网
...值为 2，依此类推。
例如：导入到数据文件的测试用 test.csv 如下：
time,data
1201,6
1202,6.2
1203,6.1
1204,6.5
1205,6.4
从上面数据文件加载数据：
以上数据折线图显示效果如下：
从列表导入(list)
将指定列表...
How efficient can Meteor be while sharing a huge collection among many clients?
...
The experiment that you can use to answer this question:
Install a test meteor: meteor create --example todos
Run it under Webkit inspector (WKI).
Examine the contents of the XHR messages moving across the wire.
Observe that the entire collection is not moved across the wire.
For tips on h...
How to convert list of tuples to multiple lists?
...87597s
Running it multiple times, append is 3x - 4x faster than zip! The test script is here:
#!/usr/bin/env python3
import time
N = 2000000
xs = list(range(1, N))
ys = list(range(N+1, N*2))
zs = list(zip(xs, ys))
t1 = time.time()
xs_, ys_ = zip(*zs)
print(len(xs_), len(ys_))
t2 = time.time()...
Does constexpr imply inline?
...n the ELF object files: How can a C++ header file include implementation?
Tested in GCC 8.3.0.
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How to format all Java files in an Eclipse project at one time?
...
Actually, upon further testing I have determined that the difference is Package Explorer vs. Project Explorer. In Project Explorer, it doesn't format all the files and in Package Explorer it does.
– Luke
Jul ...
Guards vs. if-then-else vs. cases in Haskell
...n requires MonadPlus, but what we are talking about here is guards as in | test = clauses, which aren't related.
– Ben Millwood
Mar 1 '12 at 14:58
...
Exclude a sub-directory using find
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@Ravi are you using bash shell? I just tested this on my terminal and it works for me. Try copy and pasting the solution instead if you made modifications to your script.
– sampson-chen
Nov 19 '12 at 19:30
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How to get exit code when using Python subprocess communicate method?
...ild was terminated by signal N (Unix only).
So you can just do (I didn't test it but it should work):
import subprocess as sp
child = sp.Popen(openRTSP + opts.split(), stdout=sp.PIPE)
streamdata = child.communicate()[0]
rc = child.returncode
(*) This happens because of the way it's implemente...