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How to simplify a null-safe compareTo() implementation?
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Using Java 8:
private static Comparator<String> nullSafeStringComparator = Comparator
.nullsFirst(String::compareToIgnoreCase);
private static Comparator<Metadata> metadataComparator = Comparator
.comparing(Metadata::getName, nullSafeStri...
Why shouldn't I use mysql_* functions in PHP?
... functions? (e.g. mysql_query() , mysql_connect() or mysql_real_escape_string() )?
13 Answers
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Why does the is operator return false when given null?
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I think null is string returning false is very intuitive. Null means nothing, and it is definitely not a string. So it should return false. While it is a choice the language designers made, it is a very intuitive one when you consider the re...
How to remove selected commit log entries from a Git repository while keeping their changes?
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The extra HEAD in this command is will cause the rebase to finish with a 'detached HEAD' which is undesirable. It should be ommitted.
– Frosty
May 27 '11 at 12:45
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Setting the selected value on a Django forms.ChoiceField
...ee_id})
Alternatively the initial argument can be ignored in place of an extra line with:
form.fields['manager'].initial = manager_employee_id
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Sorting 1 million 8-decimal-digit numbers with 1 MB of RAM
... compressed size: " + bucket[i].compressedOut.size()
+ String.format(" compression factor: %.2f", ((double)bucket[i].compressedOut.size())/bucketSize));
}
System.out.println(String.format("Data size: %.2fM",(double)size/(1014*1024))
+ String.forma...
Windows 7, 64 bit, DLL problems
...ication refused to start with the error message that API-MS-WIN-CORE-WINRT-STRING-L1-1-0.DLL is not found by simply updating Visual Studio.
I don't think that my build environment (Windows 7 Pro SP1, Visual Studio Ultimate 2012) was messed up completely, it worked fine for most of my projects. But...
boolean in an if statement
...y value of booleanValue including true, any non-zero number, any non-empty string value, any object or array reference, etc...
On the other hand:
if (booleanValue === true)
This will only satisfy the if condition if booleanValue is exactly equal to true. No other truthy value will satisfy it.
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How do I make an attributed string using Swift?
...user input just fine, but I need to add a lower case "g" on the end of the string that is formatted differently from the updating numbers. The "g" needs to be attached to the numbers so that as the number size and position changes, the "g" "moves" with the numbers. I'm sure this problem has been so...
What is the best way to auto-generate INSERT statements for a SQL Server table?
..._Type varchar(128),
@Actual_Values varchar(8000), --This is the string that will be finally executed to generate INSERT statements
@IDN varchar(128) --Will contain the IDENTITY column's name in the table
--Variable Initialization
SET @IDN = ''
SET @Column_ID = 0
SET @Column...