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How do I negate a condition in PowerShell?
...oesn't exist!"
}
You can also use !: if (!(Test-Path C:\Code)){}
Just for fun, you could also use bitwise exclusive or, though it's not the most readable/understandable method.
if ((test-path C:\code) -bxor 1) {write "it doesn't exist!"}
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Ruby off the rails
Sometimes it feels that my company is the only company in the world using Ruby but not Ruby on Rails, to the point that Rails has almost become synonymous with Ruby.
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How to change plot background color?
... background of the actual plot to black. I know how to change the face color of the plot using:
7 Answers
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What are Vertex Array Objects?
I am just starting to learn OpenGL today from this tutorial: http://openglbook.com/the-book/
I got to chapter 2, where I draw a triangle, and I understand everything except VAOs (is this acronym OK?). The tutorial has this code:
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Any way to properly pretty-print ordered dictionaries?
I like the pprint module in Python. I use it a lot for testing and debugging. I frequently use the width option to make sure the output fits nicely within my terminal window.
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JQuery find first parent element with specific class prefix
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Use .closest() with a selector:
var $div = $('#divid').closest('div[class^="div-a"]');
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How may I align text to the left and text to the right in the same line?
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Currently "on top" or "most votes"? Both of those can change, so you are not helping any future reaers :-) Anyway, while I started like you, with all styling in-line, I soon realized that there are good reasons for separating content & pre...
Eloquent Collection: Counting and Detect Empty
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Because if you dd($result); you'll notice an instance of Illuminate\Support\Collection is always returned, even when there are no results. Essentially what you're checking is $a = new stdClass; if ($a) { ... } which will always return true.
To determine if there are any results you can do any of...
Facebook Android Generate Key Hash
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Delete your debug certificate under ~/.android/debug.keystore (on Linux and Mac OS X); the directory is something like %USERHOME%/.android on Windows.
The Eclipse plugin should then generate a new certificate when you next try to build a debug package.
Let me know if that works.
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How to print the full NumPy array, without truncation?
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Use numpy.set_printoptions:
import sys
import numpy
numpy.set_printoptions(threshold=sys.maxsize)
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