大约有 42,000 项符合查询结果（耗时：0.0609秒） [XML]
PostgreSQL: How to pass parameters from command line?
... I wanted to test this same query directly from the psql command line (outside the script). I want to avoid going in and replacing all the ? with actual values, instead I'd like to pass the arguments after the query.
...
Google Chrome Extensions - Can't load local images with CSS
...eature to modify a website. More specifically, the background-image of said website.
8 Answers
...
How to get a table cell value using jQuery?
...t might be worth using a class attribute on the TD containing the customer ID so you can write:
$('#mytable tr').each(function() {
var customerId = $(this).find(".customerIDCell").html();
});
Essentially this is the same as the other solutions (possibly because I copy-pasted), but has th...
Git keeps asking me for my ssh key passphrase
...you your passphrase just once, and then you should be allowed to push, provided that you uploaded the public key to Github.
To save key permanently on macOS:
ssh-add -K
This will persist it after you close and re-open it by storing it in user's keychain.
...
Is it better to return null or empty collection?
...h(var item in myInstance.CollectionProperty)
/* arrgh */
}
It is considered a best practice to NEVER return null when returning a collection or enumerable. ALWAYS return an empty enumerable/collection. It prevents the aforementioned nonsense, and prevents your car getting egged by co-workers...
How do I pull my project from github?
...lone git@github.com:username/repo.git
Update:
And this is the official guide:
https://help.github.com/articles/fork-a-repo
Take a look at:
https://help.github.com/
It has really useful content
share
|
...
How do sessions work in Express.js with Node.js?
...en tampered with, so if you try and change a value the cookie will be invalid)
The session data, as opposed to some frameworks (e.g. Play Framework!) is held on the server, so the cookie is more like a placeholder for the session than a holder of actual session data.
From here, it looks like this se...
Is JavaScript guaranteed to be single-threaded?
...d question. I'd love to say “yes”. I can't.
JavaScript is usually considered to have a single thread of execution visible to scripts(*), so that when your inline script, event listener or timeout is entered, you remain completely in control until you return from the end of your block or functio...
What is meant by the term “hook” in programming?
...but was unable to find a good answer. Would someone be able to give me an idea of what this term generally means and perhaps a small example to illustrate the definition?
...
PDO mysql: How to know if insert was successful
... be thrown in case of a database error, and it will bubble up to the site-wide error handler that eventually will result in a common 500 error page.
To handle the expected error, like a duplicate primary key, and if you have a certain scenario to handle this particular error, then use a try..catch o...