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Check if element is visible in DOM

Is there any way that I can check if an element is visible in pure JS (no jQuery) ? 18 Answers ...
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Calculating distance between two points, using latitude longitude?

Here's my try, it's just a snippet of my code: 9 Answers 9 ...
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How can I get a side-by-side diff when I do “git diff”?

When I type "git diff", I'd like to see a side-by-side diff, like with "diff -y", or like to display the diff in an interactive diff tool like "kdiff3". How can this be done? ...
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Does Haskell require a garbage collector?

I'm curious as to why Haskell implementations use a GC. 8 Answers 8 ...
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How do I convert a datetime to date?

...return value of datetime.datetime.now()) to a datetime.date object in Python? 7 Answers ...
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Is floating point math broken?

... Binary floating point math is like this. In most programming languages, it is based on the IEEE 754 standard. The crux of the problem is that numbers are represented in this format as a whole number times a power of two; rational ...
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Split a module across several files

... Rust's module system is actually incredibly flexible and will let you expose whatever kind of structure you want while hiding how your code is structured in files. I think the key here is to make use of pub use, which will allow you to re-...
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How to add column if not exists on PostgreSQL?

Question is simple. How to add column x to table y , but only when x column doesn't exist ? I found only solution here how to check if column exists. ...
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Label encoding across multiple columns in scikit-learn

I'm trying to use scikit-learn's LabelEncoder to encode a pandas DataFrame of string labels. As the dataframe has many (50+) columns, I want to avoid creating a LabelEncoder object for each column; I'd rather just have one big LabelEncoder objects that works across all my columns of data. ...
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Php multiple delimiters in explode

I have a problem, I have a string array, and I want to explode in different delimiter. For Example 12 Answers ...