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Including JavaScript class definition from another file in Node.js
...= User
exports.ROLE_ADMIN = 'admin'
exports.ROLE_USER = 'user'
export.isValidUser = function isValidUser() {
// ...
}
server.js
const {User, ROLE_ADMIN, ROLE_USER, isValidUser} = require('./user.js')
// Instantiate User:
let user = new User()
ES Modules
Since Node.js version 14 it's possible ...
How to check if object (variable) is defined in R?
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@tim if you are inside a function, missing() is what you want.
– CousinCocaine
Jan 27 '14 at 14:31
2
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Best way to work with transactions in MS SQL Server Management Studio
...raint violation error.
DELETE FROM Production.Product
WHERE ProductID = 980;
END TRY
BEGIN CATCH
SELECT
ERROR_NUMBER() AS ErrorNumber
,ERROR_SEVERITY() AS ErrorSeverity
,ERROR_STATE() AS ErrorState
,ERROR_PROCEDURE() AS ErrorProcedure
,ERROR_LINE(...
Comparing Timer with DispatcherTimer
...al, WPF == DispatcherTimer and Windows Forms == Forms.Timer.
That being said, there is also System.Threading.Timer, which is a timer class that fires on a separate thread. This is good for purely numerical timing, where you're not trying to update the UI, etc.
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in entity framework code first, how to use KeyAttribute on multiple columns
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InvalidOperationException: Entity type 'XXX' has composite primary key defined with data annotations. To set composite primary key, use fluent API.
– Luca Ziegler
Nov 17 '19 at 18:07
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What is the difference between `after_create` and `after_save` and when to use which?
...aborate? Note that after_commit runs on create, updat and destroy. Docs: apidock.com/rails/ActiveRecord/Transactions/ClassMethods/… So it is not the same behavior as after_save You really want to call that cron_job after after destroying the record? Or in the ops case, send an email to a now delet...
Python Mocking a function from an imported module
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Where did test_patch come from, what is it exactly?
– Mike G
Nov 16 '13 at 6:12
2
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Difference between $state.transitionTo() and $state.go() in Angular ui-router
...oad is not an option as the view is an overlay
– Swanidhi
Mar 16 '15 at 7:06
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How do I list all loaded assemblies?
...l properties and methods, and I listed all parameters for each method. I didn't succeed on getting all of the values.
foreach(System.Reflection.AssemblyName an in System.Reflection.Assembly.GetExecutingAssembly().GetReferencedAssemblies()){
System.Reflection.Assem...
Large Numbers in Java
...
Time to compute: 58.1 seconds.
*/
public class Main {
public static void main(String... args) {
int place = args.length > 0 ? Integer.parseInt(args[0]) : 250 * 1000;
long start = System.nanoTime();
BigInteger fibNumber = fib(place);
long time = System.nanoTime...