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What is the explanation for these bizarre JavaScript behaviours mentioned in the 'Wat' talk for Code
...to a primitive returns its default value, which for objects with a valid toString() method is the result of calling object.toString() (§8.12.8). For arrays this is the same as calling array.join() (§15.4.4.2). Joining an empty array results in an empty string, so step #7 of the addition operator r...
How to read an entire file to a string using C#?
What is the quickest way to read a text file into a string variable?
16 Answers
16
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ReSharper - force curly braces around single line
...t to add the braces in the single-line scenario. And I had to set that in all six dropdowns under "Force Braces" to catch all the scenarios:
What I was really hoping for was to be able to set up ReSharper to do a yellow warning or red error when the rule was violated, but I haven't found a way t...
What is the proper way to check if a string is empty in Perl?
I've just been using this code to check if a string is empty:
6 Answers
6
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How to pad zeroes to a string?
What is a Pythonic way to pad a numeric string with zeroes to the left, i.e. so the numeric string has a specific length?
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How to remove/delete a large file from commit history in Git repository?
I accidentally dropped a DVD-rip into a website project, then carelessly git commit -a -m ... , and, zap, the repo was bloated by 2.2 gigs. Next time I made some edits, deleted the video file, and committed everything, but the compressed file is still there in the repository, in history.
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Why `null >= 0 && null
...orithm.
In Summary:
Relational Comparison: if both values are not type String, ToNumber is called on both. This is the same as adding a + in front, which for null coerces to 0.
Equality Comparison: only calls ToNumber on Strings, Numbers, and Booleans.
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How to sort a HashSet?
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Also, if you're using a collection of Strings, then List<String> sortedList = new ArrayList<String>(yourHashSet);
– wisbucky
May 18 '18 at 2:23
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Named string formatting in C#
Is there any way to format a string by name rather than position in C#?
18 Answers
18
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Can you supply arguments to the map(&:method) syntax in Ruby?
... the shorthand block:
[['0', '1'], ['2', '3']].map(&:map.with(&:to_i))
# => [[0, 1], [2, 3]]
[%w(a b), %w(c d)].map(&:inject.with(&:+))
# => ["ab", "cd"]
[(1..5), (6..10)].map(&:map.with(&:*.with(2)))
# => [[2, 4, 6, 8, 10], [12, 14, 16, 18, 20]]
Here is a conve...