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Make a negative number positive
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The concept you are describing is called "absolute value", and Java has a function called Math.abs to do it for you. Or you could avoid the function call and do it yourself:
number = (number < 0 ? -number : number);
or
if (number < 0)
number = -number;
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How to run a hello.js file in Node.js on windows?
...run the "Hello World" example found at http://nodejs.org/. This is a quick and dirty example. For a permanent installation you'd want to store the executable in a more reasonable place than the root directory and update your PATH to include its location.
Download the Windows executable here: http:...
Descending order by date filter in AngularJs
So the book comes from rest api and it has many readers attached. I want to get the 'recent' reader.
9 Answers
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Run a Docker image as a container
... answered Aug 28 '13 at 21:14
AndyAndy
28.2k44 gold badges3636 silver badges4949 bronze badges
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Array Length in Java
... length is a property, so it would be arr.length instead of arr.length().
And it will return 10, the declared size. The elements that you do not declare explicitely are initialized with 0.
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What’s the best way to check if a file exists in C++? (cross platform)
... platform) , but I'm wondering if there is a better way to do this using standard c++ libs? Preferably without trying to open the file at all.
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Access to the path is denied
...dentity it is running under (by default this is Application Pool Identity) and grant that the correct permissions.
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Display filename before matching line
... you please tell me whats the significance of adding /dev/null in this command?
– Vivek
Mar 18 '13 at 8:38
56
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Can I use assert on Android devices?
I want to use the Assert keyword in my android apps to destroy my app in some cases on the emulator, or my device during testing. Is this possible?
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How to collapse all methods in Xcode?
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As of Xcode 4 it seems to have changed.
command-alt-shift-left arrow will do the trick...
To fold/unfold current methods or if structures use:
Fold: command-alt-left arrow
Unfold: command-alt-right arrow
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