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When to use single quotes, double quotes, and backticks in MySQL
... for string values like in the VALUES() list. Double quotes are supported by MySQL for string values as well, but single quotes are more widely accepted by other RDBMS, so it is a good habit to use single quotes instead of double.
MySQL also expects DATE and DATETIME literal values to be single-quo...
How to resize a VirtualBox vmdk file
...researching why the clonehed keeps creating volumes that are not supported by the --resize. Turns out that appending --format vdi to the clonehd is crucial!
– datv
Dec 3 '17 at 6:47
...
Is unsigned integer subtraction defined behavior?
...operands can never overflow,
because a result that cannot be represented by the resulting unsigned integer type is
reduced modulo the number that is one greater than the largest value that can be
represented by the resulting type.
(ISO/IEC 9899:1999 (E) §6.2.5/9)
As you can see, (unsig...
Check if checkbox is checked with jQuery
..."chk[]" value="Bananas" />
Instead, drop the ID, and then select them by name, or by a containing element:
<fieldset id="checkArray">
<input type="checkbox" name="chk[]" value="Apples" />
<input type="checkbox" name="chk[]" value="Bananas" />
</fieldset>
And ...
Node.js vs .Net performance
...in to get queued up. If you're serving "Hello World" apps like the example by @shankar, then this might not matter that much because the threads aren't going to be blocked and you're going to be able to handle a lot of requests before you run out of threads. The problem with the ASP.NET model comes...
What are WSDL, SOAP and REST?
...ed using Uniform Resource Identifiers (URIs). The resources are acted upon by using a set of simple, well-defined operations. it follows client/server architecture and is designed to use a stateless communication protocol,typically HTTP.
– kingAm
Jun 3 '15 at 1...
What is the _snowman param in Ruby on Rails 3 forms for?
In Ruby on Rails 3 (currently using Beta 4), I see that when using the form_tag or form_for helpers there is a hidden field named _snowman with the value of ☃ ( Unicode \x9731) showing up.
...
How assignment works with Python list slice?
...ce of a with the contents of b.
Although the syntax is similar (I imagine by design!), these are two different operations.
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Removing pip's cache?
...
The current most-up-to-date answer (posted by a pip maintainer) is stackoverflow.com/a/61762308/1931274. The best approach now is pip cache purge.
– pradyunsg
May 12 at 22:53
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How to sort an ArrayList?
...ous ways, depending on the use case. Sometimes you might want to sort them by distance to 0. I don't even know about the runtime characteristics of reverse, but sorting descending could actually be faster then sorting ascending and then reversing. Moreover, using a List implementation that supports...