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Perl build, unit testing, code coverage: A complete working example
....0 n/a 0.0
D:/Perl/lib/strict.pm 84.6 50.0 50.0 100.0 0.0 73.1
D:/Perl/lib/vars.pm 44.4 36.4 0.0 100.0 0.0 36.2
D:/Perl/lib/warnings.pm 15.3 12.1 0.0 11.1 0.0 12.0
D:/Perl/lib/warnings/register.pm 0.0 0.0...
How to get current CPU and RAM usage in Python?
...lculate percentage of available memory
psutil.virtual_memory().available * 100 / psutil.virtual_memory().total
20.8
Here's other documentation that provides more concepts and interest concepts:
https://psutil.readthedocs.io/en/latest/
...
Is there a way to auto expand objects in Chrome Dev Tools?
...y (ab)using console.group:
expandedLog = (function(){
var MAX_DEPTH = 100;
return function(item, depth){
depth = depth || 0;
if (depth > MAX_DEPTH ) {
console.log(item);
return;
}
if (_.isObject(item)) {
_.each(item,...
MySQL - UPDATE query based on SELECT Query
...ceipt_invoices dest,
(
SELECT
`receipt_id`,
CAST((net * 100) / 112 AS DECIMAL (11, 2)) witoutvat
FROM
receipt
WHERE CAST((net * 100) / 112 AS DECIMAL (11, 2)) != total
AND vat_percentage = 12
) src
SET
dest.price = src.witoutvat,
dest.amount = src.wit...
How to wait for the 'end' of 'resize' event and only then perform an action?
...meout() and clearTimeout()
function resizedw(){
// Haven't resized in 100ms!
}
var doit;
window.onresize = function(){
clearTimeout(doit);
doit = setTimeout(resizedw, 100);
};
Code example on jsfiddle.
share
...
What is the difference between a field and a property?
...Note that the given example doesn't encapsulate squat. This property gives 100 % full access to the private field, so this isn't object-oriented at all. You might as well have a public field in this case. Granted, it helps (marginally) to refactor code in the future, but any IDE worth it's mettle ca...
What is context in _.each(list, iterator, [context])?
.../ elements less than 5
_.filter(r, lt, 3); // elements less than 3
// add 100 to the elements:
_.map(r, addTo, 100);
// encode eggy peggy:
_.map(words, addTo, "egg").join(" ");
// get length of words:
_.map(words, pluck, "length");
// find words starting with "e" or sooner:
_.filter(words, lt, ...
Extracting just Month and Year separately from Pandas Datetime column
..., you could do this as:
df['YearMonth'] = df['ArrivalDate'].map(lambda x: 100*x.year + x.month)
or many variants thereof.
I'm not a big fan of doing this, though, since it makes date alignment and arithmetic painful later and especially painful for others who come upon your code or data without ...
Best way to parse RSS/Atom feeds with PHP [closed]
... $summary = strip_tags($summary);
// Truncate summary line to 100 characters
$max_len = 100;
if (strlen($summary) > $max_len)
$summary = substr($summary, 0, $max_len) . '...';
return $summary;
}
}
...
通过FastCGI Cache实现服务降级 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...r;
fastcgi_cache_path
/tmp
levels=1:2
keys_zone=failover:100m
inactive=10d
max_size=10g;
upstream php {
server 127.0.0.1:9000;
server 127.0.0.1:9001;
}
server {
listen 80;
limit_conn perserver 1000;
server_name *.xip.io;
root /us...