大约有 40,000 项符合查询结果（耗时：0.0545秒） [XML]
JavaScript “new Array(n)” and “Array.prototype.map” weirdness
... objects in the array I believe the first map fails to run the function at all while the second manages to run.
share
|
improve this answer
|
follow
|
...
Google Guava isNullOrEmpty for collections
...eyard."
We don't believe that "is null or empty" is a question you ever really want to be asking about a collection.
If a collection might be null, and null should be treated the same as empty, then get all that ambiguity out of the way up front, like this:
Set<Foo> foos = NaughtyClass.getF...
Is there a way to get the XPath in Google Chrome?
... article doesn't mention copy($0), which copies to the clipboard. (Incidentally, I just discovered $x, and found this thread, because I was trying to use that variable for something else in the console.)
– Nathan Long
Jul 5 '12 at 17:35
...
Difference between “include” and “require” in php
...ill halt the script whereas include only emits a warning (E_WARNING) which allows the script to continue.
See @efritz's answer for an example
share
|
improve this answer
|
...
How to replace list item in best way
... once for the index. Your approach uses Contains first which needs to loop all items(in the worst case), then you're using IndexOf which needs to enumerate the items again .
share
|
improve this ans...
How to comment and uncomment blocks of code in the Office VBA Editor
...ndy - I can't believe I'd never found it before. A shortcut key would be really handy but unfortunately that doesn't seem to exist.
– Jamie Bull
Oct 17 '12 at 12:26
3
...
Can I use a hash sign (#) for commenting in PHP?
...HP file using hashes ( # ) for commenting. But today I realized that I actually can! I'm assuming there's a reason why everybody uses // instead though, so here I am.
...
Sqlite: CURRENT_TIMESTAMP is in GMT, not the timezone of the machine
...me is wanted (I, for example, store local time in one of my database since all I care is what time in the day is was and I don't keep track of where I was in term of time zones...), you can define the column as
"timestamp" TEXT DEFAULT (strftime('%Y-%m-%dT%H:%M','now', 'localtime'))
The %Y-%m-%d...
Using an integer as a key in an associative array in JavaScript
...
@bobince: Internally, sure. However, logically, arrays have integer "keys".
– Lightness Races in Orbit
Nov 17 '12 at 22:53
...
Which characters need to be escaped in HTML?
...t in your document in a location where text content is expected1, you typically only need to escape the same characters as you would in XML. Inside of an element, this just includes the entity escape ampersand & and the element delimiter less-than and greater-than signs < >:
& becomes...