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List of Stored Procedures/Functions Mysql Command Line
...lved this answer into select db,name,type from mysql.proc where db<>'sys'; for a bit more info, and less built-in system kruft.
– pbnelson
Aug 16 '19 at 14:49
add a comm...
How do I check that a number is float or integer?
...
The only "downside" I see is that the given number n is converted to a string by parseInt. See MDN. But I will use this solution. :)
– RhinoDevel
Nov 13 '15 at 10:28
...
Java8 Lambdas vs Anonymous classes
... obvious code that java can infer.
By using invoke dynamic, lambda are not converted back to the anonymous classes during compile time (Java do not have to go through creating objects, just care about signature of the method, can bind to method without creating object
lambda put more emphasis on wha...
Repeat each row of data.frame the number of times specified in a column
...q(nrow(df)), df$freq), 1:2]
The code for data.table is a tad cleaner:
# convert to data.table by reference
setDT(df)
df.expanded <- df[rep(seq(.N), freq), !"freq"]
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Difference between two dates in Python
... d2 = d2.strftime("%Y-%m-%d")
return abs((d2 - d1).days)
This will convert your datetime objects to strings but, two things
1) Trying to do d2 - d1 will fail as you cannot use the minus operator on strings and
2) If you read the first line of the above answer it stated, you want to use the ...
Asking the user for input until they give a valid response
... input_value = input("Please enter your age: ")
try:
# try and convert the string input to a number
age = int(input_value)
except ValueError:
# tell the user off
print("{input} is not a number, please enter a number only".format(input=input_value))
if age >...
JavaScript/jQuery to download file via POST with JSON data
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It will corrupt binary files, because they get converted to strings using encoding, and result is not very close to original binary...
– Gobol
Feb 27 '17 at 7:40
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What new capabilities do user-defined literals add to C++?
...0101010101010101_bits");
}
The advantage is that a run-time exception is converted to a compile-time error.
You couldn't add the static assert to the bitset ctor taking a string (at least not without string template arguments).
...
How are virtual functions and vtable implemented?
...a vtable
Foo z = arg; // copy constructor Foo::Foo(const Foo&) will convert to Foo
z.a(); // non-virtual Foo::a, since z is a Foo, even if arg was not
}
The steps the hardware has to take are essentially the same, no matter whether the function is overwritten or not. The address of...
Accessing an SQLite Database in Swift
...nts. Declare Swift enums for discrete data types. Define your own database-convertible types.
Database Migrations
Speed: https://github.com/groue/GRDB.swift/wiki/Performance
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