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Why is null an object and what's the difference between null and undefined?
Why is null considered an object in JavaScript?
21 Answers
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COUNT DISTINCT with CONDITIONS
I want to count the number of distinct items in a column subject to a certain condition, for example if the table is like this:
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In Python, what is the difference between “.append()” and “+= []”?
What is the difference between:
12 Answers
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Fade Effect on Link Hover?
on many sites, such as http://www.clearleft.com , you'll notice that when the links are hovered over, they will fade into a different color as opposed to immediately switching, the default action.
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Using jquery to get element's position relative to viewport
What's the proper way to get the position of an element on the page relative to the viewport (rather than the document). jQuery.offset function seemed promising:
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Scrolling a flexbox with overflowing content
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7 Answers
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Preferred way to create a Scala list
There are several ways to construct an immutable list in Scala (see contrived example code below). You can use a mutable ListBuffer, create a var list and modify it, use a tail recursive method, and probably others that I don't know about.
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Looping through array and removing items, without breaking for loop
I have the following for loop, and when I use splice() to remove an item, I then get that 'seconds' is undefined. I could check if it's undefined, but I feel there's probably a more elegant way to do this. The desire is to simply delete an item and keep on going.
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byte[] to hex string [duplicate]
How do I convert a byte[] to a string ? Every time I attempt it, I get
19 Answers
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