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What does an exclamation mark mean in the Swift language?
...ome/None), not the value itself (T). So john isn't an instance of Person, and it doesn't have an apartment member:
john.apartment
// 'Person?' does not have a member named 'apartment'
The actual Person value can be unwrapped in various ways:
"forced unwrapping": john! (gives the Person value i...
How to debug heap corruption errors?
...) multi-threaded C++ application under Visual Studio 2008. On seemingly random occasions, I get a "Windows has triggered a break point..." error with a note that this might be due to a corruption in the heap. These errors won't always crash the application right away, although it is likely to cras...
jQuery loop over JSON result from AJAX Success?
...
you can remove the outer loop and replace this with data.data:
$.each(data.data, function(k, v) {
/// do stuff
});
You were close:
$.each(data, function() {
$.each(this, function(k, v) {
/// do stuff
});
});
You have an array of objects/...
How to parse a JSON string to an array using Jackson
...
I sorted this problem by verifying the json on JSONLint.com and then using Jackson. Below is the code for the same.
Main Class:-
String jsonStr = "[{\r\n" + " \"name\": \"John\",\r\n" + " \"city\": \"Berlin\",\r\n"
+ " \"cars\": [\r\n" + " ...
C# DateTime to UTC Time without changing the time
... postfix: "",
imageUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9....
How to find out what character key is pressed?
... this works ok for alphabetic chars, but what about dots/brakets and other typogtaphic symbols?
– VoVaVc
Jan 24 '14 at 15:13
6
...
Get value of dynamically chosen class constant in PHP
...ucum why would you wanna over-complicate this? The request is quite simple and involves no outside, user manipulable input. Aside from that, you're calling another function because, I guess, you don't like the string to be concatenated with delimiters?
– ReSpawN
...
How to “comment-out” (add comment) in a batch/cmd?
...
The rem command is indeed for comments. It doesn't inherently update anyone after running the script. Some script authors might use it that way instead of echo, though, because by default the batch interpreter will print out each command...
Change default app.config at runtime
...te fields may work now, but it could use a warning that it isn't supported and may break in future versions of the .NET Framework.
– user743382
Mar 17 '15 at 9:36
...
When would you use the different git merge strategies?
...is in larger projects where many branches have had independent development and it's all ready to come together into a single head.
An octopus branch merges multiple heads in one commit as long as it can do it cleanly.
For illustration, imagine you have a project that has a master, and then three b...