大约有 24,000 项符合查询结果（耗时：0.0286秒） [XML]
What is an example of the simplest possible Socket.io example?
...gt;<button>Send</button>
</form>
<script src="https://cdn.socket.io/socket.io-1.2.0.js"></script>
<script src="https://code.jquery.com/jquery-1.11.1.js"></script>
<script>
$(function () {
var socket = io();
$('form...
ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)
I am an electrical engineer who mainly plays around with power systems instead of programming. Recently, I have been following a manual to install a software suite on Ubuntu. I have no knowledge of mySQL at all, actually. I have done the following installations on my Ubuntu.
...
How to change href of tag on button click through javascript
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
How to get an array of unique values from an array containing duplicates in JavaScript? [duplicate]
...lution:
[...new Set(a)];
Alternative:
Array.from(new Set(a));
Old response. O(n^2) (do not use it with large arrays!)
var arrayUnique = function(a) {
return a.reduce(function(p, c) {
if (p.indexOf(c) < 0) p.push(c);
return p;
}, []);
};
...
How to upgrade PostgreSQL from version 9.6 to version 10.1 without losing data?
....org/pub/repos/apt/ utopic-pgdg main
Follow below commands
wget -q -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | sudo apt-key add -
sudo apt-get update
sudo apt-get install postgresql-9.4
sudo pg_dropcluster --stop 9.4 main
sudo /etc/init.d/postgresql start
Now we have everything, ...
How to get screen dimensions as pixels in Android
...ion. I ended up looking at his open source project that can be found here: https://code.google.com/p/enh/
Here's all the relevant code:
WindowManager w = activity.getWindowManager();
Display d = w.getDefaultDisplay();
DisplayMetrics metrics = new DisplayMetrics();
d.getMetrics(metrics);
// since S...
Do I cast the result of malloc?
... result, since:
It is unnecessary, as void * is automatically and safely promoted to any other pointer type in this case.
It adds clutter to the code, casts are not very easy to read (especially if the pointer type is long).
It makes you repeat yourself, which is generally bad.
It can hide an erro...
Uninstall Node.JS using Linux command line?
...lowing command:
sudo make uninstall
If you followed the instructions on https://github.com/nodejs/node/wiki to install to your $HOME/local/node, then you have to type the following before the line above:
./configure --prefix=$HOME/local/node
...
Makefiles with source files in different directories
I have a project where the directory structure is like this:
10 Answers
10
...
How can I make my match non greedy in vim?
I have a big HTML file that has lots of markup that looks like this:
8 Answers
8
...