大约有 30,000 项符合查询结果(耗时:0.0376秒) [XML]
:after vs. ::after
Is there any functional difference between the CSS 2.1 :after and the CSS 3 ::after pseudo-selectors (other than ::after not being supported in older browsers)? Is there any practical reason to use the newer specification?
...
javascript: pause setTimeout();
If I have an active timeout running that was set through var t = setTimeout("dosomething()", 5000) ,
17 Answers
...
Join strings with a delimiter only if strings are not null or empty
This feels like it should be simple, so sorry if I'm missing something here, but I'm trying to find a simple way to concatenate only non-null or non-empty strings.
...
ZSH complains about RVM __rvm_cleanse_variables: function definition file not found
When using the latest ZSH and RVM on Mac OS X 10.7.4 ZSH complains about this:
5 Answers
...
How to prevent robots from automatically filling up a form?
...especially on "specific" attacks) way of solving anti-spam is tracking the time between form-submit and page-load.
Bots request a page, parse the page and submit the form. This is fast.
Humans type in a URL, load the page, wait before the page is fully loaded, scroll down, read content, decide wet...
Regular expression for a string containing one word but not another
I'm setting up some goals in Google Analytics and could use a little regex help.
4 Answers
...
How to decide when to use Node.js?
...ling", you can write an application that sends updates to the user in real time. Doing long polling on many of the web's giants, like Ruby on Rails or Django, would create immense load on the server, because each active client eats up one server process. This situation amounts to a tarpit attack. Wh...
Tell Ruby Program to Wait some amount of time
How do you tell a Ruby program to wait an arbitrary amount of time before moving on to the next line of code?
6 Answers
...
Super slow lag/delay on initial keyboard animation of UITextField
...
FYVM Apple, FYVM. 90 minutes of time on a deadline I can't afford. 20 upvotes if I could. Still present in iOS9.2/Xcode 7.2
– BaseZen
Dec 30 '15 at 18:09
...
How do I access the request object or any other variable in a form's clean() method?
I am trying to request.user for a form's clean method, but how can I access the request object? Can I modify the clean method to allow variables input?
...
