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Efficient way to determine number of digits in an integer
...1; if (x < 100) return 2; etc., so that the function will do less tests and exit faster.
– squelart
Sep 28 '09 at 23:44
29
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Purpose of buildscript block in Gradle
I am new to Gradle and I am reading the documentation but I don't understand some parts of it. One of these parts is connected with buildscript block. What is its purpose?
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How to add minutes to my Date
...issue for you is that you are using mm. You should use MM. MM is for month and mm is for minutes. Try with yyyy-MM-dd HH:mm
Other approach:
It can be as simple as this (other option is to use joda-time)
static final long ONE_MINUTE_IN_MILLIS=60000;//millisecs
Calendar date = Calendar.getInstan...
Usages of Null / Nothing / Unit in Scala
... by returning, it could throw an exception). Nothing is never instantiated and is there for the benefit of the type system (to quote James Iry: "The reason Scala has a bottom type is tied to its ability to express variance in type parameters."). From the article you linked to:
One other use of N...
How to make a function wait until a callback has been called using node.js
... be "returned" in the normal sense, but rather send the routine that will handle the resulting value:
function(query, callback) {
myApi.exec('SomeCommand', function(response) {
// other stuff here...
// bla bla..
callback(response); // this will "return" your value to the original cal...
Google Chromecast sender error if Chromecast extension is not installed or using incognito
... least, avoid requesting the extension scipt if the browser is not Chrome. And I suspect it could be possible to suppress the error even if it is Chrome, but haven't tried anything.)
If you are a user annoyed by these console messages, you can switch to Chrome if not using it already. Within Chrome...
How do I delete from multiple tables using INNER JOIN in SQL server
...table.
As a side note, you can also do inserted.* on an insert statement, and both inserted.* and deleted.* on an update statement.
EDIT:
Also, have you considered adding a trigger on table1 to delete from table2 + 3? You'll be inside of an implicit transaction, and will also have the "inserted." ...
Is there a way to get a collection of all the Models in your Rails app?
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EDIT: Look at the comments and other answers. There are smarter answers than this one! Or try to improve this one as community wiki.
Models do not register themselves to a master object, so no, Rails does not have the list of models.
But you could st...
SQL: deleting tables with prefix
...
You cannot do it with just a single MySQL command, however you can use MySQL to construct the statement for you:
In the MySQL shell or through PHPMyAdmin, use the following query
SELECT CONCAT( 'DROP TABLE ', GROUP_CONCAT(table_name) , ';' )
AS statement FROM info...
Constructor overloading in Java - best practice
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While there are no "official guidelines" I follow the principle of KISS and DRY. Make the overloaded constructors as simple as possible, and the simplest way is that they only call this(...). That way you only need to check and handle the parameters once and only once.
public class Simple {
...