大约有 32,000 项符合查询结果（耗时：0.0443秒） [XML]
iPhone : How to detect the end of slider drag?
...*)slider forEvent:(UIEvent*)event {
UITouch *touchEvent = [[event allTouches] anyObject];
switch (touchEvent.phase) {
case UITouchPhaseBegan:
// handle drag began
break;
case UITouchPhaseMoved:
// handle drag moved
bre...
What is the combinatory logic equivalent of intuitionistic type theory?
...------------ S ={beta} T
G |- x : S G |- s : T
In a small variation from the original, I've made lambda the only binding operator, so the second argument of Pi should be a function computing the way the return type depends on the input. By convention (e.g. in Agda, but sadly not...
Order of event handler execution
...
Downvoted since it is factually incorrect on 2 points. 1) Currently they are executed in the order that the implementation of the specific event dictates - since you can implement your own add/remove methods for events. 2) When using the default event ...
Returning JSON from a PHP Script
...
While you're usually fine without it, you can and should set the Content-Type header:
<?php
$data = /** whatever you're serializing **/;
header('Content-Type: application/json');
echo json_encode($data);
If I'm not using a particular fra...
How to read a file without newlines?
In Python, calling
9 Answers
9
...
fatal error: Python.h: No such file or directory
...
Looks like you haven't properly installed the header files and static libraries for python dev. Use your package manager to install them system-wide.
For apt (Ubuntu, Debian...):
sudo apt-get install python-dev # for python2.x installs
sudo apt-get insta...
MySQL with Node.js
...de.js. I come from a PHP background, so I'm fairly used to using MySQL for all my database needs.
9 Answers
...
Saving enum from select in Rails 4.1
...;/option>
</select>
Values went from "0" to "red" and now we're all set.
If you're using a regular ol' rails text_field it's:
f.select :color, Wine.colors.keys.to_a
If you want to have clean human-readable attributes you can also do:
f.select :color, Wine.colors.keys.map { |w| [w...
How to open a web page from my application?
...n up a pretty big security hole in your application if you were to accidentally get the URL from user input and not validate that it is a URI. They can then launch any application they want on your system.
– cdiggins
Nov 6 '15 at 17:49
...
Maximum size of an Array in Javascript
...
The maximum length until "it gets sluggish" is totally dependent on your target machine and your actual code, so you'll need to test on that (those) platform(s) to see what is acceptable.
However, the maximum length of an array according to the ECMA-262 5th Edition specific...