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Tool for generating railroad diagram used on json.org [closed]
...n Online Railroad Diagram Generator. It creates SVG syntax diagrams, also known as railroad diagrams, from context-free grammars specified in EBNF. You can copy the SVG code or take screen shots.
You have to type in the grammar and it'll make the diagram.
For example, to create the first railroad ...
AngularJS performs an OPTIONS HTTP request for a cross-origin resource
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I know it's 2+ years later, but... The OP refers to GET requests multiple times (emphasis added by me): «[...] the request sent to the asset file is an OPTIONS request (it should be a GET request).» and «the browser is trying...
“implements Runnable” vs “extends Thread” in Java
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I know I'm a bit late commenting on this, but dealing with FutureTask directly is generally not what you want to do. ExecutorServices will create the appropriate Future for you when you submit a Runnable/Callable to them. Like...
Has Facebook sharer.php changed to no longer accept detailed parameters?
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The quote and hashtag parameters work as of Dec 2018.
Does anyone know if there have been recent changes which could have suddenly stopped this from working?
The parameters have changed. The currently accepted answer states:
Facebook no longer supports custom parameters in sharer.php
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How do I 'overwrite', rather than 'merge', a branch on another branch in Git?
...eckout B
$ echo 'B' > file2
$ git commit -m 'change on branch B' file2
Now, let's try the strategy option (doesn't really matter if we use theirs or ours for this explanation):
$ git merge -X ours A
$ cat file*
A
B
original
We end up with a merge of both branches' contents (branch "strategy-opt...
Using scanf() in C++ programs is faster than using cin?
I don't know if this is true, but when I was reading FAQ on one of the problem providing sites, I found something, that poke my attention:
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Swapping column values in MySQL
I have a MySQL table with coordinates, the column names are X and Y. Now I want to swap the column values in this table, so that X becomes Y and Y becomes X. The most apparent solution would be renaming the columns, but I don't want to make structure changes since I don't necessarily have permission...
Difference between knockout View Models declared as object literals vs functions
...removeItem = function(item) {
self.items.remove(item);
}
};
Now, if you are in the scope of an individual item and call $root.removeItem, the value of this will actually be the data being bound at that level (which would be the item). By using self in this case, you can ensure that i...
Is it possible to embed animated GIFs in PDFs?
... PDFs may have been originally made for physical printing, but have now completely taken the place of printed documents - they are the de-facto digital document, so it makes perfect sense that we should allow them to embed animations.
– Demis
May 12 '16 ...
JavaScript OOP in NodeJS: how?
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Looks now deprecated. From answer link: Note: usage of util.inherits() is discouraged. Please use the ES6 class and extends keywords to get language level inheritance support. Also note that the two styles are semantically incompat...