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Check synchronously if file/directory exists in Node.js
... await fs.promises.access("somefile");
// The check succeeded
} catch (error) {
// The check failed
}
Or with a callback:
fs.access("somefile", error => {
if (!error) {
// The check succeeded
} else {
// The check failed
}
});
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Increase distance between text and title on the y-axis
The y-axis title appears too close to the axis text.
2 Answers
2
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Which is preferred: Nullable.HasValue or Nullable != null?
...uming SomeNullable is an int?).
While SomeNullable.Value gets us a runtime error if we assigned null to SomeNullable. This is in fact the only case where nullables could cause us a problem, thanks to a combination of overloaded operators, overloaded object.Equals(obj) method, and compiler optimizati...
How to get screen dimensions as pixels in Android
I created some custom elements, and I want to programmatically place them to the upper right corner ( n pixels from the top edge and m pixels from the right edge). Therefore I need to get the screen width and screen height and then set position:
...
How to convert byte array to string and vice versa?
... }
catch (IOException e1) {
System.out.println("Error Reading The File.");
e1.printStackTrace();
}
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Angularjs loading screen on ajax request
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If you get the "elm.show() is not a function" error, you must add jquery before loading angular.
– morpheus05
May 25 '15 at 11:44
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How to play ringtone/alarm sound in Android
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I still get an error - Failed to open ringtone content://settings/system/alarm_alert
– Pritesh Desai
Feb 10 '13 at 19:19
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Java Round up Any Number
I can't seem to find the answer I'm looking for regarding a simple question: how do I round up any number to the nearest int ?
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Java - No enclosing instance of type Foo is accessible
...ance of Hello (even if it never uses or refers to it), which means it's an error to say new Thing(); without having a particular Hello instance in scope.
If you declare it as a static class instead, then it's a "nested" class, which doesn't need a particular Hello instance.
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