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AWS Difference between a snapshot and AMI
...volume plus some metadata like the architecture, kernel, AMI name, description, block device mappings, and more.
You can take a snapshot of an EBS boot volume and turn it into an EBS boot AMI by registering it with the appropriate metadata. The trickiest part of this is specifying the correct AKI...
What is the difference between pip and conda?
...er, not as a core feature. Conda manages environments, each with their own mix of installed packages at specific versions. So project A, having been developed some time ago, can still cling on to an older version of library Foo (no resources available to upgrade the project to work with a newer rele...
Animate scrollTop not working in firefox
This function works fine. It scrolls the body to a desired container's offset
11 Answers
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Set a default parameter value for a JavaScript function
I would like a JavaScript function to have optional arguments which I set a default on, which get used if the value isn't defined (and ignored if the value is passed). In Ruby you can do it like this:
...
How to track down log4net problems
...n, it's very easy to build and debug the source code. If you don't want to mix this up with your development project, add a simple console application which just logs a message, copy your project's log4net.config to this application, and debug the class in question.
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How to convert a data frame column to numeric type?
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Warning != Error. You don't get an error converting mixed numeric/character to numeric, you get a warning and some NA values.
– Gregor Thomas
Apr 18 '18 at 13:01
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Android equivalent to NSNotificationCenter
In the process of porting an iPhone application over to android, I am looking for the best way to communicate within the app. Intents seem to be the way to go, is this the best (only) option? NSUserDefaults seems much lighter weight than Intents do in both performance and coding.
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How to overload the operator++ in two different ways for postfix a++ and prefix ++a?
... correct all the way through apart from a sentence in the middle where you mix. Its prefix that is better.
– Martin York
Oct 2 '10 at 19:10
6
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Using Kafka as a (CQRS) Eventstore. Good idea?
...essages—whether or not they
have been consumed—for a configurable period of time. For example if
the retention is set for two days, then for the two days after a
message is published it is available for consumption, after which it
will be discarded to free up space. Kafka's performance i...
How do I check if a string contains a specific word?
...ng you can use the PHP function strpos().
int strpos ( string $haystack , mixed $needle [, int $offset = 0 ] )
<?php
$haystack = 'how are you';
$needle = 'are';
if (strpos($haystack,$needle) !== false) {
echo "$haystack contains $needle";
}
?>
CAUTION:
If the needle you are searchi...