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AWS MySQL RDS vs AWS DynamoDB [closed]
...r while MySQL is used for relational storage. You should pick what to use based on the actual needs of your application. In fact, some applications might be well served by using both.
If, for example, you are storing data that does not lend itself well to a relational schema (tree structures, sche...
Why would you ever implement finalize()?
...I inherited the code and it was very buggy and had a tendency to leave database connections open. We modified the connections to contain data about when and where they were created and then implemented finalize to log this information if the connection wasn't closed properly. It turned out to be a...
What size should TabBar images be?
...lines:
@1x : about 25 x 25 (max: 48 x 32)
@2x : about 50 x 50 (max: 96 x 64)
@3x : about 75 x 75 (max: 144 x 96)
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Amazon S3 direct file upload from client browser - private key disclosure
...
I think what you want is Browser-Based Uploads Using POST.
Basically, you do need server-side code, but all it does is generate signed policies. Once the client-side code has the signed policy, it can upload using POST directly to S3 without the data going ...
Way to ng-repeat defined number of times instead of repeating over array?
...
@sh0ber. When I need to change the list items based on the value selected in number dropdown. I tried your function first, when it is not working, I changed it to above to update the no. of list items when different number is selected in the dropdown. Can you please chec...
Why is Double.MIN_VALUE in not negative
...y small positive quantity in maths / physics. Go chose SmallestNonzeroFloat64 for instance.
– aioobe
Aug 28 '17 at 6:14
...
Changing navigation bar color in Swift
...e one reference throughout your whole app for each colour and it'll update based on the user's selected "Theme" and without one it defaults to theme1():
import Foundation
import UIKit
struct Style {
static let availableThemes = ["Theme 1","Theme 2","Theme 3"]
static func loadTheme(){
let de...
Fast way to get image dimensions (not filesize)
...xImageString .= sprintf("%02x", ord($ByteStream[$i]));
if ($Salto==64){
$this->HexImageString .= "\n";
$Salto = 0;
}
}
}
}
private function Byte2PosInt($Byte08,$Byte00) {
return ((ord($Byte08) & 0xFF) << 8)|((ord($Byte00) & 0xF...
How to round the minute of a datetime object
...-01-01 01:03:34.285714285
7 2019-01-01 01:04:00.000000000
dtype: datetime64[ns]
>>> ts.dt.round('1min')
0 2019-01-01 01:01:00
1 2019-01-01 01:01:00
2 2019-01-01 01:02:00
3 2019-01-01 01:02:00
4 2019-01-01 01:03:00
5 2019-01-01 01:03:00
6 2019-01-01 01:04:00
7 2019-01-01 0...
What's the difference between integer class and numeric class in R
...he number is stored in two pieces: the exponent (like 308 above, except in base 2 rather than base 10), and the "significand" (like 1.797693 above).
Note that 'is.integer' is not a test of whether you have a whole number, but a test of how the data are stored.
One thing to watch out for is that t...