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How to create enum like type in TypeScript?
...gned to it. This is demonstrated below:
let foo: 'Hello';
foo = 'Bar'; // Error: "Bar" is not assignable to type "Hello"
They are not very useful on their own but can be combined in a type union to create a powerful (and useful) abstraction e.g.:
type CardinalDirection =
"North"
| "East"...
What is the (best) way to manage permissions for Docker shared volumes?
I've been playing around with Docker for a while and keep on finding the same issue when dealing with persistent data.
13 A...
Detect if Android device has Internet connection
...e() == 200);
} catch (IOException e) {
Log.e(LOG_TAG, "Error checking internet connection", e);
}
} else {
Log.d(LOG_TAG, "No network available!");
}
return false;
}
Of course you can substitute the http://www.google.com URL for any other server you ...
How to UPSERT (MERGE, INSERT … ON DUPLICATE UPDATE) in PostgreSQL?
...ch other; one of them successfully INSERTs; the other gets a duplicate key error and does an UPDATE instead. The UPDATE blocks waiting for the INSERT to rollback or commit. When it rolls back, the UPDATE condition re-check matches zero rows, so even though the UPDATE commits it hasn't actually done ...
Avoid web.config inheritance in child web application using inheritInChildApplications
...
I get this error "The configuration section 'configSections' cannot be read because it is missing a section declaration " in my parents web.config file.
– Blankman
Apr 23 '09 at 15:37
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How to get Maven project version to the bash command line
...
[ERROR] Failed to execute goal org.codehaus.mojo:exec-maven-plugin:1.3.2:exec (default-cli) on project audit-events-processor-parent: Command execution failed. Cannot run program "maven" (in directory "/tmp"): error=2, No such...
Proper way to make HTML nested list?
...the <li> it belongs in.
If you validate, option 1 comes up as an error in html 5 -- credit: user3272456
Correct: <ul> as child of <li>
The proper way to make HTML nested list is with the nested <ul> as a child of the <li> to which it belongs. The nested list s...
Debugging WebSocket in Google Chrome
... and then you can see the Frames (now called Messages) which will show you error messages etc.
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Browser detection in JavaScript? [duplicate]
... version number supplied by the browser.
It is handy for sorting test and error results, when you are testing new code on multiple browsers.
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Responsive website zoomed out to full width on mobile
...
Adding this for people searching this error for whom the accepted answer is not working. I believe this will be a rarer, but nonetheless frustrating case:
If your page is rendering inside a frameset (for example domain cloaking), then putting the meta tags won'...