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Memcache(d) vs. Varnish for speeding up 3 tier web architecture
...s will result in an overhead and little benefit for modified pages.
Mostly read -- Varnish will probably cover most of it.
Similar read & write -- Varnish will serve a lot of the pages for you, Memcache will provide info for pages that have a mixture of known and new data allowing you to generat...
unique object identifier in javascript
...s a __objectID__ property, and by defining it as a hidden (non-enumerable) read-only property if not.
So it is safe against any attempt to change or redefine the read-only obj.__objectID__ property after it has been defined, and consistently throws a nice error instead of silently fail.
Finally, i...
Call An Asynchronous Javascript Function Synchronously
...ized) as the standard for JavaScript on June 27th, 2017. Async await may already work in your browser, but if not you can still use the functionality using a javascript transpiler like babel or traceur. Chrome 55 has full support of async functions. So if you have a newer browser you may be able to ...
In Clojure, when should I use a vector over a list, and the other way around?
I read that Vectors are not seqs, but Lists are. I'm not sure what the rationale is for using one over the other. It seems that vectors are used the most, but is there a reason for that?
...
How can I add numbers in a Bash script?
...b directly, no need to ls
echo "$j"
# 'grep' can read files, no need to use 'cat'
metab=$(grep EndBuffer "$j" | awk '{sum+=$2} END { print sum/120}')
num=$(( $num + $metab ))
done
echo "$num"
done
As described in Bash FAQ 022, Bash does not...
How do I show the schema of a table in a MySQL database?
... looking to figure out the "db_name" part, and this solution assumes you already know that
– Antonio Ortells
Dec 20 '16 at 21:36
41
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Assignment in an if statement
...s though. It's not terribly unusual for me to do it in a while though when reading streams of data. For example:
string line;
while ((line = reader.ReadLine()) != null)
{
...
}
These days I normally prefer to use a wrapper which lets me use foreach (string line in ...) but I view the above as...
Cannot send a content-body with this verb-type
... is for, providing body data for the request.
Given that you're trying to read from the stream, it looks to me like you actually want to get the response and read the response stream from that:
WebRequest request = WebRequest.Create(get.AbsoluteUri + args);
request.Method = "GET";
using (WebRespon...
Get top 1 row of each group
... (where each could have several numbers). This is where Apply excels. Less reads = less disk access = better performance. Given my experience is with poorly designed non-normalized databases.
– TamusJRoyce
Jun 5 '16 at 17:36
...
Check if Internet Connection Exists with Javascript? [duplicate]
...ed a more robust solution you could try:
var online = navigator.onLine;
Read more about the W3C's spec on offline web apps, however be aware that this will work best in modern web browsers, doing so with older web browsers may not work as expected, or at all.
Alternatively, an XHR request to you...