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How to get object length [duplicate]
... Object.keys(a).length : IE8 doesn't support this and still a large user base use IE8. Therefore, I wouldn't rely on this.
– lshettyl
Apr 12 '13 at 12:24
14
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Expand/collapse section in UITableView in iOS
...sing the UITableView or the headers that are already there will be a pain. Based on the way they work now, I am not sure you can easily get actions out of them. You could set up a cell to LOOK like a header, and setup the tableView:didSelectRowAtIndexPath to manually expand or collapse the section i...
How to add a progress bar to a shell script?
...mplification, but in order to match Daenyth's approach the spinner must be based on \b rather than \r, as it will otherwise only work at the very beginning of a line: while :; do for c in / - \\ \|; do printf '%s\b' "$c"; sleep 1; done; done - or, if displaying the cursor behind the spinner is undes...
From inside of a Docker container, how do I connect to the localhost of the machine?
... submitted on March the 8th, 2019 and will hopefully be merged to the code base. Until then, a workaround is to use a container as described in qoomon's answer.
2020-01: some progress has been made. If all goes well, this should land in Docker 20.04
TLDR
Use --network="host" in your docker run ...
Android Bitmap to Base64 String
How do I convert a large Bitmap (photo taken with the phone's camera) to a Base64 String?
7 Answers
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Legality of COW std::string implementation in C++11
...< *p << '\n'; // p is dangling
The point of that example is to demonstrate why GCC's reference counted (COW) string is not valid in C++11. The C++11 standard requires this code to work correctly. Nothing in the code permits the p to be invalidated in C++11.
Using GCC's old reference-cou...
Hash and salt passwords in C#
...you must convert a hash to its string representation you can use Convert.ToBase64String and Convert.FromBase64String to convert it back.
You should note that you cannot use the equality operator on byte arrays, it checks references and so you should simply loop through both arrays checking each byt...
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Check orientation on Android phone
...etOrientation(float[] R, float[] values) computes the device's orientation based on the rotation matrix.
– user1914692
Jul 20 '13 at 23:24
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iPhone: How to get current milliseconds?
...t we can make a function and do as follows
func getCurrentMillis()->Int64{
return Int64(NSDate().timeIntervalSince1970 * 1000)
}
var currentTime = getCurrentMillis()
Though its working fine in Swift 3.0 but we can modify and use the Date class instead of NSDate in 3.0
Swift 3.0
func g...