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How can I create an array with key value pairs?
...bracket syntax:
if (!empty($row["title"])) {
$catList[$row["datasource_id"]] = $row["title"];
}
$row["datasource_id"] is the key for where the value of $row["title"] is stored in.
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imp...
How to select bottom most rows?
...columns
FROM
(
SELECT TOP 200
columns
FROM
My_Table
ORDER BY
a_column DESC
) SQ
ORDER BY
a_column ASC
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BLE（二）信道&数据包&协议栈格式 - 创客硬件开发 - 清泛IT社区，...
文章源自：https://www.gandalf.site/2018/11/ble_23.html
参考低功耗蓝牙（BLE）安全初探
0x1 信道BLE的物理通道即“频道，分别是‘f=2402+k*2 MHz, k=0, … ,39’，带宽为2MHz”的40个RF Channel。
其中，有3个信道是advertising channel（广播通道）...
Can angularjs routes have optional parameter values?
...using the trailing slash? If my route is: .when('/claims/documents/:CLAIMS_ID/:DOCUMENT_NAME?'... it won't match if the url doesn't have a trailing slash. So /claims/documents/1234/ matches, but /claims/documents/1234 doesn't.
– James Bell
Nov 21 '14 at 20:40...
“sending 'const NSString *' to parameter of type 'NSString *' discards qualifiers” warning
...ion/Foundation.h>
@interface Constants : NSObject
extern NSString *APP_STATE_LOGGED_IN;
extern NSString *APP_STATE_LOGGED_OUT;
@end
// Constants.m
#import <Foundation/Foundation.h>
#import "Constants.h"
@implementation Constants
NSString *APP_STATE_LOGGED_IN = @"APP_STATE_LOGGED_IN";
...
Scale image to fit a bounding box
...
Test it here: http://www.w3schools.com/cssref/playit.asp?filename=playcss_background-size&preval=contain
Full compatibility with latest browsers: http://caniuse.com/background-img-opts
To align the div in the center, you can use this variation:
.bounding-box {
background-image: url(...);
...
Typedef function pointer?
...ef definition before compiling the actual code.
Example:
typedef int (*t_somefunc)(int,int);
int product(int u, int v) {
return u*v;
}
t_somefunc afunc = &product;
...
int x2 = (*afunc)(123, 456); // call product() to calculate 123*456
...
Can Json.NET serialize / deserialize to / from a stream?
...JSON so the client could send {"sign in":{"username":"nick"}}{"buy item":{"_id":"32321123"}} and it needs to see this as two fragments of JSON signaling an event each time it reads a fragment. In nodejs this can be done in 3 lines of code.
– Nick Sotiros
Jun 2...
How do I return rows with a specific value first?
... solution than the accepted answer in my opinion)
– a_horse_with_no_name
Sep 24 '13 at 20:49
2
Wo...
Excluding directories in os.walk
...ld a comprehension only for its side effects...
– 301_Moved_Permanently
Nov 5 '16 at 9:33
3
This ...