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What are the differences between various threading synchronization options in C#?
Can someone explain the difference between:
7 Answers
7
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How can I delete a query string parameter in JavaScript?
...Exp, such as ‘.’. And it's not a global regex, so it would only remove one instance of the parameter.
I wouldn't use a simple RegExp for this, I'd parse the parameters in and lose the ones you don't want.
function removeURLParameter(url, parameter) {
//prefer to use l.search if you have a ...
Understanding the meaning of the term and the concept - RAII (Resource Acquisition is Initialization
...lling you what to do: Acquire your resource in a constructor! I would add: one resource, one constructor. UTSTTC is just one application of that, RAII is much more.
Resource Management sucks. Here, resource is anything that needs cleanup after use. Studies of projects across many platforms show the...
Ruby Regexp group matching, assign variables on 1 line
...ng like this:
#!/usr/bin/env ruby
string = "RyanOnRails: This is a test"
one, two, three = string.match(/(^.*)(:)(.*)/i).captures
p one #=> "RyanOnRails"
p two #=> ":"
p three #=> " This is a test"
Be aware that if no match is found, String#match will return nil, so something like ...
Any gotchas using unicode_literals in Python 2.6?
...ng with unicode strings is when you mix utf-8 encoded strings with unicode ones.
For example, consider the following scripts.
two.py
# encoding: utf-8
name = 'helló wörld from two'
one.py
# encoding: utf-8
from __future__ import unicode_literals
import two
name = 'helló wörld from one'
pri...
How to amend older Git commit? [duplicate]
...ve made 3 git commits, but have not been pushed.
How can I amend the older one (ddc6859af44) and (47175e84c) which is not the most recent one?
...
What is the difference between integration and unit tests?
...en, since they stress the code in a scenario close to reality. They invoke one or more software methods or features and test if they act as expected.
On the opposite, a Unit test testing a single method relies on the (often wrong) assumption that the rest of the software is correctly working, becau...
What is the difference between typeof and instanceof and when should one be used vs. the other?
.../object
{} instanceof Object; // true
typeof {}; // object
And the last one is a little bit tricky:
typeof null; // object
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In Python how should I test if a variable is None, True or False
I have a function that can return one of three things:
6 Answers
6
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Bogus foreign key constraint fail
...eference
The innodb internal data dictionary is out of sync with the mysql one.
You can see which table it was (one of them, anyway) by doing a "SHOW ENGINE INNODB STATUS" after the drop fails.
If it turns out to be the latter case, I'd dump and restore the whole server if you can.
MySQL 5.1 and...