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How to return a part of an array in Ruby?
With a list in Python I can return a part of it using the following code:
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What, exactly, is needed for “margin: 0 auto;” to work?
I know that setting margin: 0 auto; on an element is used to centre it (left-right). However, I know that the element and its parent must meet certain criteria for the auto margin to work, and I can never seem to get the magic right.
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How to tell if JRE or JDK is installed
I have one computer that I intentionally installed JDK on. I have another computer with JRE, for, among other things, testing. However, when I got a java application working on this computer, and then tried it on another, it complained that JDK was required. How can I check if JDK was somehow instal...
How can I convert the “arguments” object to an array in JavaScript?
The arguments object in JavaScript is an odd wart—it acts just like an array in most situations, but it's not actually an array object. Since it's really something else entirely , it doesn't have the useful functions from Array.prototype like forEach , sort , filter , and map .
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How to find out element position in slice?
How does one determine the position of an element present in slice?
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Should an Enum start with a 0 or a 1?
Imagine I have defined the following Enum:
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Making text background transparent but not text itself
So I am having a problem. I have looked around and looked around but no luck. I would like to make the background of my body transparent but leave the text non transparent. As it is right now I keep making both the same opacity. Here is my code:
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arrayfun can be significantly slower than an explicit loop in matlab. Why?
Consider the following simple speed test for arrayfun :
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How to convert hex to rgb using Java?
How can I convert hex color to RGB code in Java? Mostly in Google, samples are on how to convert from RGB to hex.
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How to make a HTML Page in A4 paper size page(s)?
Is it possible to make a HTML page behave, for example, like a A4-sized page in MS Word?
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