大约有 45,044 项符合查询结果（耗时：0.0330秒） [XML]
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();
...
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...
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
...
How to request Google to re-crawl my website? [closed]
Does someone know a way to request Google to re-crawl a website? If possible, this shouldn't last months. My site is showing an old title in Google's search results. How can I show it with the correct title and description?
...
How to upgrade PowerShell version from 2.0 to 3.0
...is Windows 7, and the PowerShell version that is installed here is 2.0. Is it possible for me to upgrade it to version 3.0 or 4.0?
...
CruiseControl [.Net] vs TeamCity for continuous integration?
...
I have worked on and with Continuous Integration tools since the one that spawned Cruise Control (java version). I've tried almost all of them at some point. I've never been happier than I am with TeamCity. It is very simple to set up and still pr...
Show or hide element in React
I am messing around with React.js for the first time and cannot find a way to show or hide something on a page via click event. I am not loading any other library to the page, so I am looking for some native way using the React library. This is what I have so far. I would like to show the results...
Integrating MySQL with Python in Windows
I am finding it difficult to use MySQL with Python in my windows system.
16 Answers
16...
What is so bad about singletons? [closed]
...ton pattern is a fully paid up member of the GoF 's patterns book , but it lately seems rather orphaned by the developer world. I still use quite a lot of singletons, especially for factory classes , and while you have to be a bit careful about multithreading issues (like any class actually), I ...