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Why are there two kinds of functions in Elixir?
... a closure, similar to a lambda in Ruby. We can create it as follows:
x = 1
fun = fn y -> x + y end
fun.(2) #=> 3
A function can have multiple clauses too:
x = 1
fun = fn
y when y < 0 -> x - y
y -> x + y
end
fun.(2) #=> 3
fun.(-2) #=> 3
Now, let's try something differe...
Converting an array of objects to ActiveRecord::Relation
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edited Dec 2 '14 at 0:04
answered Jun 26 '13 at 23:29
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How to force maven update?
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1630
mvn clean install -U
-U means force update of snapshot dependencies. Release dependencies ...
How to check whether a script is running under Node.js?
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edited Nov 14 '18 at 12:41
answered Mar 4 '11 at 17:34
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Argmax of numpy array returning non-flat indices
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162
You could use numpy.unravel_index() on the result of numpy.argmax():
>>> a = numpy.r...
Get dimension from XML and set text size in runtime
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<dimen name="text_medium">18sp</dimen>
Set the size in code:
textView.setTextSize(TypedValue.COMPLEX_UNIT_PX, getResources().getDimension(R.dimen.text_medium));
shar...
MLKitSegmenter 拓展：人像分割（抠图 / 换背景 / 背景虚化） · App Inventor 2 中文网
... 文件放在哪里
运行环境：AI 伴侣联机需要 Android 11 及以上
常见问题
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MLKitSegmenter 拓展
把照片里的人和背景分开，然后：抠出人像（背景透明）、换成纯色背景、换成另一张图...