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Shell script while read line loop stops after the first line
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The problem is that do_work.sh runs ssh commands and by default ssh reads from stdin which is your input file. As a result, you only see the first line processed, because ssh consumes the rest of the file and your while loop terminates.
To prevent this, pass the -n option to your ssh command to m...
Get child node index
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ES6:
Array.from(element.parentNode.children).indexOf(element)
Explanation :
element.parentNode.children → Returns the brothers of element, including that element.
Array.from → Casts the constructor of children to an Array object...
Is UML practical? [closed]
...what you're doing though. What about the new hire who comes in six months from now and needs to come up to speed on the code? What about five years from now when everyone currently working on the project is gone?
It's incredibly helpful to have some basic up to date documentation available for an...
How set background drawable programmatically in Android
...int ) is now deprecated in API level 22.
You should use the following code from the support library instead:
ContextCompat.getDrawable(context, R.drawable.ready)
If you refer to the source code of ContextCompat.getDrawable, it gives you something like this:
/**
* Return a drawable object associ...
C++ new int[0] — will it allocate memory?
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From 5.3.4/7
When the value of the expression in a direct-new-declarator is zero, the allocation function is called to allocate an array with no elements.
From 3.7.3.1/2
The effect of dereferencing a pointer returne...
Is there a library function for Root mean square error (RMSE) in python?
..._error function. The RMSE is just the square root of whatever it returns.
from sklearn.metrics import mean_squared_error
from math import sqrt
rms = sqrt(mean_squared_error(y_actual, y_predicted))
share
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What is the instanceof operator in JavaScript?
... type.
Here are some good examples and here is an example taken directly from Mozilla's developer site:
var color1 = new String("green");
color1 instanceof String; // returns true
var color2 = "coral"; //no type specified
color2 instanceof String; // returns false (color2 is not a String object)
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Java Garbage Collection Log messages
...e collection to be printed at each collection. For example, here is output from a large server application:
[GC 325407K->83000K(776768K), 0.2300771 secs]
[GC 325816K->83372K(776768K), 0.2454258 secs]
[Full GC 267628K->83769K(776768K), 1.8479984 secs]
Here we see two minor collection...
Why doesn't the JVM cache JIT compiled code?
The canonical JVM implementation from Sun applies some pretty sophisticated optimization to bytecode to obtain near-native execution speeds after the code has been run a few times.
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NUnit vs. MbUnit vs. MSTest vs. xUnit.net [closed]
...bout your code, which integrates better with the concept of what a test is from a TDD/BDD perspective.
xUnit.NET is also EXTREMELY extensible. Its FactAttribute and TraitAttribute attribute classes are not sealed, and provide overridable base methods that give you a lot of control over how the met...