大约有 31,840 项符合查询结果（耗时：0.0348秒） [XML]
Cross-browser window resize event - JavaScript / jQuery
...owing example, inspired by this:
function doSomething() {
alert("I'm done resizing for the moment");
};
var resizeTimer;
$(window).resize(function() {
clearTimeout(resizeTimer);
resizeTimer = setTimeout(doSomething, 100);
});
...
Define: What is a HashSet?
... HashSet (or getting an item by index) is rather slow.
So why would someone want be able to know if an entry already exists in a set?
One situation where a HashSet is useful is in getting distinct values from a list where duplicates may exist. Once an item is added to the HashSet it is quick t...
Selecting only first-level elements in jquery
...f selectors are working fine now. Thanks very much for your reply and everyone who replied.
– aston
Jun 10 '09 at 20:33
...
Should composer.lock be committed to version control?
...c versions of the libs you are using.
If you commit your changes, and someone pulls your code and updates the dependencies, the lockfile should be unmodified. If it is modified, it means that you have a new version of something.
Having it in the repository assures you that each developer is using ...
What Every Programmer Should Know About Memory?
...in any high performance application. This makes the paper essential for anyone involved in: game development, scientific computing, finance, databases, compilers, processing of large datasets, visualization, anything that has to handle lots of requests... So yes, if you are working in an application...
Best way to make Django's login_required the default
...equired
class RequireLoginMiddleware(object):
"""
Middleware component that wraps the login_required decorator around
matching URL patterns. To use, add the class to MIDDLEWARE_CLASSES and
define LOGIN_REQUIRED_URLS and LOGIN_REQUIRED_URLS_EXCEPTIONS in your
settings.py. For ex...
PHP random string generator
...om number generator instead. It also doesn't allow characters to repeat.
One more way.
UPDATED (now this generates any length of string):
function generateRandomString($length = 10) {
return substr(str_shuffle(str_repeat($x='0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ', ce...
Error 908: Permission RECEIVE_SMS has been denied. - App Inventor 2 中...
...对于发送短信/拨打电话，我们创建了SendMessageDirect和MakePhoneCallDirect模块，执行旧的需要额外权限的行为。我们选择让现有的SendMessage和MakePhoneCall模块通过Intents启动默认应用程序，这是Google政策推荐的做法，对大多数人应该有效...
Saving and loading objects and using pickle
...structure is this 'd = {"a": 1, "b": 2}' ?
– Peterstone
Dec 25 '10 at 15:56
1
...
Many-to-many relationship with the same model in rails?
...d association, we are telling Rails that we can reach the other posts, the ones connected to this one, through our first association post_connections, followed by the post_b association of PostConnection.
There's just one more thing missing, and that is that we need to tell Rails that a PostConnect...