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How does one generate a random number in Apple's Swift language?
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SoliQuiD: except omit the extra underscore after arc4, i.e. arc4random_uniform(5).
– Ali Beadle
Jun 17 '17 at 10:43
3
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Why are const parameters not allowed in C#?
...od type system, a type system where when you say "this variable contains a string" that the variable actually contains a reference to a string (or null). We absolutely do not want to put a C-style "const" modifier into the type system because we don't want the type system to be a lie. We want the ty...
Favorite (Clever) Defensive Programming Best Practices [closed]
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When printing out error messages with a string (particularly one which depends on user input), I always use single quotes ''. For example:
FILE *fp = fopen(filename, "r");
if(fp == NULL) {
fprintf(stderr, "ERROR: Could not open file %s\n", filename);
retu...
Does Java have buffer overflows?
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Since Java Strings are based on char arrays and Java automatically checks array bounds, buffer overflows are only possible in unusual scenarios:
If you call native code via JNI
In the JVM itself (usually written in C++)
The interprete...
How to concatenate string variables in Bash
In PHP, strings are concatenated together as follows:
30 Answers
30
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Highlight text similar to grep, but don't filter out text [duplicate]
...e the regex engine notices the empty alternation at the end of the pattern string matches the beginning of the subject string.
[1]: http://www.regular-expressions.info/engine.html
FIRST EDIT:
I ended up using perl:
perl -pe 's:pattern:\033[31;1m$&\033[30;0m:g'
This assumes you have an ANS...
MySQL select where column is not empty
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Compare value of phone2 with empty string:
select phone, phone2
from jewishyellow.users
where phone like '813%' and phone2<>''
Note that NULL value is interpreted as false.
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Remove Trailing Spaces and Update in Columns in SQL Server
...('Amit Tech Corp '))
LTRIM - removes any leading spaces from left side of string
RTRIM - removes any spaces from right
Ex:
update table set CompanyName = LTRIM(RTRIM(CompanyName))
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impr...
Extracting hours from a DateTime (SQL Server 2005)
...'10AM'
WHEN 11 THEN '11AM'
WHEN 12 THEN '12PM'
ELSE CONVERT(varchar, DATEPART(HOUR, R.date_schedule)-12) + 'PM'
END
FROM
dbo.ARCHIVE_RUN_SCHEDULE R
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NSDate beginning of day and end of day
...n)!
let specificDate = Date("2020-01-01")
extension Date {
init(_ dateString:String) {
let dateStringFormatter = DateFormatter()
dateStringFormatter.dateFormat = "yyyy-MM-dd"
dateStringFormatter.locale = NSLocale(localeIdentifier: "en_US_POSIX") as Locale
let dat...