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How to use a variable for the key part of a map
...(X):2]
For the value-part it's even easier, since there is no automagic "convert text to string" happening:
def map = [keyA:A, keyX:X]
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Java 8 stream reverse order
...t;Integer> list = Arrays.asList(1,2,3,4);
list.stream()
.boxed() // Converts Intstream to Stream<Integer>
.sorted(Collections.reverseOrder()) // Method on Stream<Integer>
.forEach(System.out::println);
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Java Class.cast() vs. cast operator
...ce and no conversion ever happens to objects (only primitive values can be converted using this syntax).
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In C# what is the difference between ToUpper() and ToUpperInvariant()?
...fferent cultures. The most known example is the Turkish example, for which converting lowercase latin "i" to uppercase, doesn't result in a capitalized latin "I", but in the Turkish "I".
As for me it was confusing even with the above picture (source), I wrote a program (see source code below) to se...
What's the difference between := and = in Makefile?
...ever, if the variable GCC is reassigned i.e
GCC=c++ then the ${CC} will be converted to c++ -W after the reassignment.
Conditional assignment ?=
Conditional assignment assigns a value to a variable only if it does not have a value
Appending +=
Assume that CC = gcc then the appending operator...
Which access modifiers are implied when not specified?
...ublic. Only transpiling will throw errors. Both public and private will be converted to <Object>.prototype.funcName
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String concatenation in Ruby
...he given object to str. If the object is a Fixnum between 0 and 255, it is converted to a character before concatenation.
so difference is in what becomes to first operand (<< makes changes in place, + returns new string so it is memory heavier) and what will be if first operand is Fixnum (&l...
MySQL, better to insert NULL or empty string?
...tching databases, is that Oracle does not support empty strings. They are converted to NULL automatically and you can't query for them using clauses like WHERE somefield = '' .
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Join/Where with LINQ and Lambda
...ple. Its really convenient. If i suffer any performance penalties then ill convert the query to Dapper
– ozzy432836
Jun 27 at 10:59
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getting date format m-d-Y H:i:s.u from milliseconds
...pproach. Rather than work to create a high-precision numeric date/time, I convert the microsecond value to a string, remove the 0, and add it to the end of the date/time string. I can easily trim the number of decimals by adjusting the string length parameter; here I use 4 to get milliseconds, but...