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How can I make a div stick to the top of the screen once it's been scrolled to?

...be the overall accepted solution for this question, since as far as I have read, it is the most complete solution. Basically, the others did not solve the problem with the original X-position of a block after the position: fixed style is applied. Yours solves this problem. Really, many thanks! ...
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What data type to use for hashed password field and what length?

...ing a hash function is not strong enough for storing passwords. You should read the answer from Gilles on this thread for a more detailed explanation. For passwords, use a key-strengthening hash algorithm like Bcrypt or Argon2i. For example, in PHP, use the password_hash() function, which uses Bcry...
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Determine Whether Two Date Ranges Overlap

... and (StartB <= EndA) NOTE3. Thanks to @tomosius, a shorter version reads: DateRangesOverlap = max(start1, start2) < min(end1, end2) This is actually a syntactical shortcut for what is a longer implementation, which includes extra checks to verify that the start dates are on or before the ...
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When should we implement Serializable interface?

...atanNir A Strictly defined schema is better. And JSON is meant to be human readable, while binary encoded formats are far more efficient over the wire – OneCricketeer Apr 23 '18 at 7:10 ...
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Convert pandas dataframe to NumPy array

...tique of Other Solutions DataFrame.values has inconsistent behaviour, as already noted. DataFrame.get_values() is simply a wrapper around DataFrame.values, so everything said above applies. DataFrame.as_matrix() is deprecated now, do NOT use! ...
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How to access remote server with local phpMyAdmin client?

... It can be done, but you need to change the phpMyAdmin configuration, read this post: http://www.danielmois.com/article/Manage_remote_databases_from_localhost_with_phpMyAdmin If for any reason the link dies, you can use the following steps: Find phpMyAdmin's configuration file, called config...
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Passing enum or object through an intent (the best solution)

...romParcel(final Parcel source) { return MyEnum.values()[source.readInt()]; } @Override public MyEnum[] newArray(final int size) { return new MyEnum[size]; } }; } You can then use Intent.putExtra(String, Parcelable). UPDATE: Please note ...
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Warn user before leaving web page with unsaved changes

...bmitting()"> <input type="submit" /> </form> But read on... Long, correct answer: You also don't want to show this message when the user hasn't changed anything on your forms. One solution is to use the beforeunload event in combination with a "dirty" flag, which only tri...
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Advantages and disadvantages of GUID / UUID database keys

... there's always a bit of uncertainty, especially around performance and un-read-out-over-the-phone-able URLs. 9 Answers ...
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Dynamic SQL - EXEC(@SQL) versus EXEC SP_EXECUTESQL(@SQL)

...ited reference for many aspects of dynamic sql is Erland Sommarskog's must read: "The Curse and Blessings of Dynamic SQL". share | improve this answer | follow ...