大约有 48,000 项符合查询结果（耗时：0.0549秒） [XML]
jQuery and AJAX response header
So I've got this jQuery AJAX call, and the response comes from the server in the form of a 302 redirect. I'd like to take this redirect and load it in an iframe, but when I try to view the header info with a javascript alert, it comes up null, even though firebug sees it correctly.
...
How to find all duplicate from a List? [duplicate]
...
In .NET framework 3.5 and above you can use Enumerable.GroupBy which returns an enumerable of enumerables of duplicate keys, and then filter out any of the enumerables that have a Count of <=1, then select their keys to get back down to a singl...
Index on multiple columns in Ruby on Rails
...:user_id, :article_id], you can perform a fast query on user_id or user_id AND article_id, but NOT on article_id.
Your migration add_index line should look something like this:
add_index :user_views, [:user_id, :article_id]
Question regarding 'unique' option
An easy way to do this in Rails ...
Specifically, what's dangerous about casting the result of malloc?
... therefore converting the void* pointer actually returned by malloc to int and then to your pointer type due to the explicit cast. On some platforms, int and pointers may take up different numbers of bytes, so the type conversions may lead to data corruption.
Fortunately, modern compilers give warn...
How to duplicate a whole line in Vim?
...
and 2yy can be used to copy 2 lines (and for any other n)
– Amir Ali Akbari
Oct 9 '12 at 10:33
6
...
Split large string in n-size chunks in JavaScript
...
As far as performance, I tried this out with approximately 10k characters and it took a little over a second on Chrome. YMMV.
This can also be used in a reusable function:
function chunkString(str, length) {
return str.match(new RegExp('.{1,' + length + '}', 'g'));
}
...
Easiest way to rename a model using Django/South?
I've been hunting for an answer to this on South's site, Google, and SO, but couldn't find a simple way to do this.
4 Answ...
Setting focus on an HTML input box on page load
... @PeterMortensen when I tested this 9 years ago was on firefox, chrome and ie :)
– Saikios
Jul 1 '19 at 16:34
add a comment
|
...
How can I get the sha1 hash of a string in node.js?
...
See the crypto.createHash() function and the associated hash.update() and hash.digest() functions:
var crypto = require('crypto')
var shasum = crypto.createHash('sha1')
shasum.update('foo')
shasum.digest('hex') // => "0beec7b5ea3f0fdbc95d0dd47f3c5bc275da8a33...
Android: What is better - multiple activities or switching views manually?
I have developed some apps for Android, and this questions stays always:
7 Answers
7
...