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How to exclude file only from root folder in Git
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612
From the documentation:
If the pattern does not contain a slash /, git treats it as a shell gl...
Why can't decimal numbers be represented exactly in binary?
... SO about floating-point representation. For example, the decimal number 0.1 doesn't have an exact binary representation, so it's dangerous to use the == operator to compare it to another floating-point number. I understand the principles behind floating-point representation.
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How can I check if a Perl array contains a particular value?
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12 Answers
12
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Transpose a data frame
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109
You'd better not transpose the data.frame while the name column is in it - all numeric values ...
Getting the name of a variable as a string
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edited Aug 13 at 16:06
answered Dec 16 '19 at 20:52
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The “backspace” escape character '\b': unexpected behavior?
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145
Your result will vary depending on what kind of terminal or console program you're on, but yes...
Getting distance between two points based on latitude/longitude
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215
Edit: Just as a note, if you just need a quick and easy way of finding the distance between two...
What is “lifting” in Scala?
... i > 0 => i % 2 == 0}
pf: PartialFunction[Int,Boolean] = <function1>
scala> pf.lift
res1: Int => Option[Boolean] = <function1>
scala> res1(-1)
res2: Option[Boolean] = None
scala> res1(1)
res3: Option[Boolean] = Some(false)
Methods
You can "lift" a method invocatio...
TINYTEXT, TEXT, MEDIUMTEXT, and LONGTEXT maximum storage sizes
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1549
From the documentation (MySQL 8) :
Type | Maximum length
-----------+----------------...