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What is a NullReferenceException, and how do I fix it?
I have some code and when it executes, it throws a NullReferenceException , saying:
28 Answers
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What is the pythonic way to avoid default parameters that are empty lists?
Sometimes it seems natural to have a default parameter which is an empty list. Yet Python gives unexpected behavior in these situations .
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How to create a windows service from java app
I've just inherited a java application that needs to be installed as a service on XP and vista. It's been about 8 years since I've used windows in any form and I've never had to create a service, let alone from something like a java app (I've got a jar for the app and a single dependency jar - log4j...
When to delete branches in Git?
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You can safely remove a branch with git branch -d yourbranch. If it contains unmerged changes (ie, you would lose commits by deleting the branch), git will tell you and won't delete it.
So, deleting a merged branch is cheap and won't make you lose any hist...
Understanding prototypal inheritance in JavaScript
...functions is constructor and then prototype. So for your lookup of Drive() it finds it regardless if it is in the constructor or in the prototype. Using the prototype is more efficient because usually you need a function only once per type.
The new call in javascript automatically sets the construc...
What is the JavaScript version of sleep()?
...;
}
async function demo() {
console.log('Taking a break...');
await sleep(2000);
console.log('Two seconds later, showing sleep in a loop...');
// Sleep in loop
for (let i = 0; i < 5; i++) {
if (i === 3)
await sleep(2000);
console.log(i);
}
}
demo();
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Should services always return DTOs, or can they also return domain models?
I'm (re)designing large-scale application, we use multi-layer architecture based on DDD.
9 Answers
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Are fluid websites worth making anymore? [closed]
I'm making a website now and I am trying to decide if I should make it fluid or not. Fixed width websites are much easier to make and also much easier to make them appear consistent.
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Is there a way to delete a line in Visual Studio without cutting it?
I want to delete a line just like hitting Ctrl + X without anything selected, but without saving the line to the copy stack. Is this possible?
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Why is Python running my module when I import it, and how do I stop it?
I have a Python program I'm building that can be run in either of 2 ways: the first is to call "python main.py" which prompts the user for input in a friendly manner and then runs the user input through the program. The other way is to call "python batch.py -file- " which will pass over all the fr...