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Difference between os.getenv and os.environ.get
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@PreslavRachev minimal or not it is an extra function call, so there is some overhead. That being said, you probably don't need to retrieve env variables in the middle of your inner loop.
– pmav99
Feb 24 '19 at 14:08
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Object.getOwnPropertyNames vs Object.keys
...rence is in case of array Object.getOwnPropertyNames method will return an extra property that is length.
var x = ["a", "b", "c", "d"];
Object.keys(x); //[ '0', '1', '2', '3' ]
Object.getOwnPropertyNames(x); //[ '0', '1', '2', '3', 'length' ]
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How is mime type of an uploaded file determined by browser?
... (managed by the handler service)
// 3. OS-provided information
// 4. our "extras" array
// 5. Information from plugins
// 6. The "ext-to-type-mapping" category
The hard-coded lists come earlier in the file, somewhere near line 441. You're looking for defaultMimeEntries and extraMimeEntries.
With m...
iOS: Compare two dates
... I've found problems using compare & isEqualToDate. Sure, it may be an extra 2 lines of code, but it's more reliable.
– Coach Roebuck
Jul 25 '15 at 17:04
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Does git return specific return error codes?
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This is extra annoying for debugging your commit hooks. Whats the point of even having an exit code in your git hooks if a failed commit is just going to always return 1 instead of your hook exit code.
– Novice ...
When correctly use Task.Run and when just async-await
...ronous signatures, so it won't complete until DoWorkAsync is complete. The extra async/await is unnecessary. I explain more of the "why" in my blog series on Task.Run etiquette.
– Stephen Cleary
Nov 14 '15 at 16:17
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How to pass objects to functions in C++?
... C tmp = a;
a = b;
b = tmp;
}
public static void main( String args[] ) {
C a = new C();
C b = new C();
C old_a = a;
C old_b = b;
swap( a, b );
// a and b remain unchanged a==old_a, and b==old_b
}
}
The Java version of the code will modify...
How to expand/collapse a diff sections in Vimdiff?
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Actually if you do Ctrl+W W, you won't need to add that extra Ctrl. Does the same thing.
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Why should I not wrap every block in “try”-“catch”?
...esign; it is never just an afterthought that can be retrofitted with a few extra catch statements as if for seasoning.
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How to read contacts on Android 2.0
...ts.CONTENT_URI,null, null, null, null);
while (cursor.moveToNext()) {
String contactId = cursor.getString(cursor.getColumnIndex(
ContactsContract.Contacts._ID));
String hasPhone = cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts.HAS_PHONE_NUMBER));
if (Boolean.parseB...