大约有 46,000 项符合查询结果（耗时：0.0651秒） [XML]
Can you “compile” PHP code and upload a binary-ish file, which will just be run by the byte code int
I know that PHP is compiled to byte code before it is run on the server, and then that byte code can be cached so that the whole script doesn't have to be re-interpreted with every web access.
...
How to use NSCache
...
You use it the same way you would use NSMutableDictionary. The difference is that when NSCache detects excessive memory pressure (i.e. it's caching too many values) it will release some of those values to make room.
If you can recre...
What platforms have something other than 8-bit char?
...hen, someone on SO points out that char (aka 'byte') isn't necessarily 8 bits .
12 Answers
...
Can someone explain the traverse function in Haskell?
...o grok the traverse function from Data.Traversable . I am unable to see its point. Since I come from an imperative background, can someone please explain it to me in terms of an imperative loop? Pseudo-code would be much appreciated. Thanks.
...
How to measure time in milliseconds using ANSI C?
Using only ANSI C, is there any way to measure time with milliseconds precision or more? I was browsing time.h but I only found second precision functions.
...
What is “entropy and information gain”?
I am reading this book ( NLTK ) and it is confusing. Entropy is defined as :
7 Answers
...
How can I detect if a selector returns null?
...
My favourite is to extend jQuery with this tiny convenience:
$.fn.exists = function () {
return this.length !== 0;
}
Used like:
$("#notAnElement").exists();
More explicit than using length.
...
What, exactly, is needed for “margin: 0 auto;” to work?
I know that setting margin: 0 auto; on an element is used to centre it (left-right). However, I know that the element and its parent must meet certain criteria for the auto margin to work, and I can never seem to get the magic right.
...
Can someone explain the “debounce” function in Javascript
I am interested in the "debouncing" function in javascript, written here : http://davidwalsh.name/javascript-debounce-function
...
See my work log in jira
...ra. Currently jira shows work log for individual story / sub tasks. But is it possible to show the total amount of work logged in jira by individual developer.
...