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Does JSON syntax allow duplicate keys in an object?
...ther standards will refer to this one, strictly adhering to the JSON text format, while
imposing restrictions on various encoding details. Such standards may require specific behaviours. JSON
itself specifies no behaviour.
Further down in the standard (p. 2), the specification for a JSON ob...
What is a “symbol” in Julia?
...ly the readtable() function with the names option, but that requires a vector of symbols.
1 Answer
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What is the difference between MySQL Server and MySQL Client
In Ubuntu I normally install both but what are the differences between the client and server for MySQL.
3 Answers
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How to make “if not true condition”?
...ve written).
Also, looking at your code as is, your use of the $( ... ) form of cmd-substitution is to be commended, but think about what is coming out of the process. Try echo $(cat /etc/passwd | grep "sysa") to see what I mean. You can take that further by using the -c (count) option to grep and...
Float vs Decimal in ActiveRecord
Sometimes, Activerecord data types confuse me. Err, often. One of my eternal questions is, for a given case,
3 Answers
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How to write a Ruby switch statement (case…when) with regex and backreferences?
...
The references to the latest regex matching groups are always stored in pseudo variables $1 to $9:
case foo
when /^([0-9][0-9])/
print "the month is #{$1}"
else
print "something else"
end
You can also use the $LAST_MATCH_INFO pseudo variable to get at the whole MatchData object...
Will the base class constructor be automatically called?
Would the age of customer be 2? It seems like the base class's constructor will be called no matter what. If so, why do we need to call base at the end sometimes?
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Hashing a dictionary?
For caching purposes I need to generate a cache key from GET arguments which are present in a dict.
11 Answers
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How to sort my paws?
...t a pressure plate, but now I'm struggling to link these results to their corresponding paws:
3 Answers
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Do you have to put Task.Run in a method to make it async?
I'm trying to understand async await in the simplest form. I want to create a very simple method that adds two numbers for the sake of this example, granted, it's no processing time at all, it's just a matter of formulating an example here.
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