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Why does a RegExp with global flag give wrong results?
...oo Bar'));
re.lastIndex = 0;
result.push(re.test('Foo Bar'));
// result is now [true, true]
Having said that it may be more readable to create a new RegExp object each time (overhead is minimal as the RegExp is cached anyway):
result.push((/Foo B/gi).test(stringA));
result.push((/Foo B/gi).test(s...
Javascript “Not a Constructor” Exception while creating objects
...ame; work in other code and you could instantiate the class just fine, but now I try it and it doesn't work for different code. Wondering if it's the SDK itself I'm working with.
– Azurespot
Sep 27 '19 at 1:22
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How do I use a PriorityQueue?
...
@Neil Yes, I have made it more explicit in the answer now :)
– akhil_mittal
Apr 29 '19 at 5:50
1
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Unknown Column In Where Clause
...tcount
FROM nodes
WHERE attachmentcount > 0;
You'll get an error "Unknown column 'attachmentcount' in WHERE clause".
Solution is actually fairly simple - just replace the alias with the statement which produces the alias, eg:
SELECT nodes.*, (SELECT (COUNT(*) FROM attachments
WHERE attachme...
Enable remote MySQL connection: ERROR 1045 (28000): Access denied for user
...mysql/mysql.conf.d/mysqld.cnf
# Instead of skip-networking the default is now to listen only on
# localhost which is more compatible and is not less secure.
#bind-address = 127.0.0.1
(comment this line: bind-address = 127.0.0.1)
Then run service mysql restart.
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How to “return an object” in C++?
I know the title sounds familiar as there are many similar questions, but I'm asking for a different aspect of the problem (I know the difference between having things on the stack and putting them on the heap).
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Is there a SASS.js? Something like LESS.js?
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Now we just need a C++ to Ruby compiler and we can unify the codebase.
– joeytwiddle
Aug 23 '15 at 23:59
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What is Ad Hoc Query?
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As a developer with years of experience now, I've been learning a lot of things while I was looking for something completely different than what I look for. So IMHO adding a sentence just like '... don't forget to do necessary controls and sanitization for myId her...
How to force an entire layout View refresh?
...e().
ViewGroup vg = findViewById (R.id.mainLayout);
vg.invalidate();
Now, when the Activity resumes, it makes every View to draw itself. No call to invalidate() should be needed. To apply the theme, make sure you do it before any View is drawn, i.e., before setContentView(R.layout.mainscreen);...
How to check type of files without extensions in python?
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With newer subprocess library, you can now use the following code (*nix only solution):
import subprocess
import shlex
filename = 'your_file'
cmd = shlex.split('file --mime-type {0}'.format(filename))
result = subprocess.check_output(cmd)
mime_type = result.spli...