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Why use getters and setters/accessors?
... functionality (like validation) to be added more easily later.
Hiding the internal representation of the property while exposing a property using an alternative representation.
Insulating your public interface from change - allowing the public interface to remain constant while the implementation c...
What happens to global and static variables in a shared library when it is dynamically linked?
...olution (I work a lot with visual studio!). These modules are either built into *.lib or *.dll or the *.exe itself.
2 Answe...
while (1) vs. while(True) — Why is there a difference (in python 2 bytecode)?
Intrigued by this question about infinite loops in perl: while (1) Vs. for (;;) Is there a speed difference? , I decided to run a similar comparison in python. I expected that the compiler would generate the same byte code for while(True): pass and while(1): pass , but this is actually not the c...
Handle file download from ajax post
...ersion using jQuery.ajax. It might mangle binary data when the response is converted to a string of some charset.
$.ajax({
type: "POST",
url: url,
data: params,
success: function(response, status, xhr) {
// check for a filename
var filename = "";
var disposit...
Use RSA private key to generate public key?
...revious command. Try running the following commands and compare output:
# Convert the key from PEM to DER (binary) format
openssl rsa -in private.pem -outform der -out private.der
# Print private.der private key contents as binary stream
xxd -p private.der
# Now compare the output of the above co...
What's the difference between ngModel.$modelValue and ngModel.$viewValue
...nslate it back to
$modelValue.
If you change $modelValue, $formatters will
convert it to $viewValue.
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Android studio, gradle and NDK
...ery new to this whole gradle and Android Studio support. I have managed to convert my android project to gradle using the export option.
...
How to obtain the start time and end time of a day?
...l today = new Interval( todayStart, tomorrowStart );
If you must, you can convert to a java.util.Date.
java.util.Date date = todayStart.toDate();
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SQL Server dynamic PIVOT query?
...T_SQL_STRING = 'SELECT top 1 STUFF((SELECT distinct '', '' + CAST(''[''+CONVERT(VARCHAR,'+ @PIVOT_COLUMN+')+'']'' AS VARCHAR(50)) [text()]
FROM '+@TABLE+'
WHERE ISNULL('+@PIVOT_COLUMN+','''') <> ''''
FOR XM...
Insert, on duplicate update in PostgreSQL?
...h ON CONFLICT clause. with the following syntax (similar to MySQL)
INSERT INTO the_table (id, column_1, column_2)
VALUES (1, 'A', 'X'), (2, 'B', 'Y'), (3, 'C', 'Z')
ON CONFLICT (id) DO UPDATE
SET column_1 = excluded.column_1,
column_2 = excluded.column_2;
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