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Why does 0.ToString(“#.##”) return an empty string instead of 0.00 or at least 0?
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# in the string format indicate that the value is optional. If you wish to get the output 0.00 you need the following:
0.ToString("0.00");
See here for the custom numeric formats that can be passed to this method.
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What happens if I define a 0-size array in C/C++?
Just curious, what actually happens if I define a zero-length array int array[0]; in code? GCC doesn't complain at all.
7...
String to object in JS
...');
alert(myobj.hello); // 'world'
2)
var myobj = JSON.parse(JSON.stringify({
hello: "world"
});
alert(myobj.hello); // 'world'
3)
Passing a function to JSON
var obj = {
hello: "World",
sayHello: (function() {
console.log("I say Hello!");
}).toString()
};
var myobj = JS...
Naming conventions for java methods that return boolean(No question mark)
... that the method should be creating a snapshot, instead of checking to see if one is required.
In this case you should rethink what you are actually asking. Something like isSnapshotExpired is a much better name, and conveys what the method will tell you when it is called. Following a pattern li...
How to set a default value for an existing column
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+1 for specifying a constraint name, so SQL Server doesn't create a random one.
– HardCode
Jul 22 '11 at 15:25
38
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Spark java.lang.OutOfMemoryError: Java heap space
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I have a few suggestions:
If your nodes are configured to have 6g maximum for Spark (and are leaving a little for other processes), then use 6g rather than 4g, spark.executor.memory=6g. Make sure you're using as much memory as possible by checking the...
EditText maxLines not working - user can still input more lines than set
...lies the maximum number of lines that should be possible with an editText. If I just wanted a specific height I'd use "lines". :-/
– Someone Somewhere
Apr 29 '14 at 19:03
add ...
Add a column with a default value to an existing table in SQL Server
...generated.
DEFAULT (0)--Optional Default-Constraint.
WITH VALUES --Add if Column is Nullable and you want the Default Value for Existing Records.
Notes:
Optional Constraint Name:
If you leave out CONSTRAINT D_SomeTable_SomeCol then SQL Server will autogenerate
a Default-Contraint with a...
SQL Server - transactions roll back on error?
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@AlexMcMillan The DROP PROCEDURE statement modifies the database structure, unlike INSERT, which just works with the data. So it cannot be wrapped in a transaction. I'm oversimplifying, but basically that's how it is.
– eksortso
Jun...
NSObject +load and +initialize - What do they do?
...able file, the runtime sends the load message very early in the process's lifetime. For classes that are in a shared (dynamically-loaded) library, the runtime sends the load message just after the shared library is loaded into the process's address space.
Furthermore, the runtime only sends load t...