大约有 40,000 项符合查询结果（耗时：0.0397秒） [XML]
Bulk Insertion in Laravel using eloquent ORM
... Worth noting that it doesn't touch Eloquent in fact. It just proxies the call to Query\Builder@insert() method. There's no way to efficiently insert multiple rows with Eloquent, nor does it offer any method for bulk inserts.
– Jarek Tkaczyk
Jan 7 '15 at 23:19
...
Convert character to ASCII numeric value in java
...
The several answers that purport to show how to do this are all wrong because Java characters are not ASCII characters. Java uses a multibyte encoding of Unicode characters. The Unicode character set is a super set of ASCII. So there can be characters in a Java string that do not belo...
How to display Toast in Android?
...
Actually, requiring an Activity context is not correct. HOWEVER, getting toasts to work outside of activities (for example in a system Service) requires access to the main loop. Posting my solution.
– Chri...
Java: Check if enum contains a given string?
...u do not have to worry about adding additional enum values later, they are all checked.
Edit: If the enum is very large you could stick the values in a HashSet:
public static HashSet<String> getEnums() {
HashSet<String> values = new HashSet<String>();
for (Choice c : Choice...
How to run Rails console in the test environment and load test_helper.rb?
...other tests. I'd like to go to the console and run different Factory Girl calls to check out what's happening. For example, I'd like to go in there are do...
...
How do I test a camera in the iPhone simulator?
...n send it through the pipelined to be treated like a normal photo. Essentially providing the feel of a very fast camera.
CGSize sz = UIDeviceOrientationIsPortrait([[UIDevice currentDevice] orientation]) ? CGSizeMake(2448, 3264) : CGSizeMake(3264, 2448);
UIGraphicsBeginImageContextWithOptions(sz, Y...
How do you divide each element in a list by an int?
...
The way you tried first is actually directly possible with numpy:
import numpy
myArray = numpy.array([10,20,30,40,50,60,70,80,90])
myInt = 10
newArray = myArray/myInt
If you do such operations with long lists and especially in any sort of scientific com...
How do I stop Chrome from yellowing my site's input boxes?
...ere's an error triggered, but it is a complex bit of coding to programmatically turn off the auto-complete for the single effected input on a page."
– Dave Rutledge
Oct 6 '08 at 21:54
...
$watch an object
I want to watch for changes in a dictionary, but for some reason watch callback is not called.
8 Answers
...
How to set background color of a View
...
When you call setBackgoundColor it overwrites/removes any existing background resource, including any borders, corners, padding, etc.
What you want to do is change the color of the existing background resource...
View v;
v.getBackgrou...