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How do I check to see if a value is an integer in MySQL?
...ect field from table where field REGEXP '^-?[0-9]+$';
this is reasonably fast. If your field is numeric, just test for
ceil(field) = field
instead.
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How can I get LINQ to return the object which has the max value for a given property? [duplicate]
...e. Sure, anyone with functional experience will recognize the fold just as fast, but not everyone has that. Finally, NickLarsen's solution does two passes (and has a problem if there are multiple max-values).
– tzaman
Jul 7 '10 at 8:17
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How to load images dynamically (or lazily) when users scrolls them into view
...pular scripts address that I haven't thought of.
Note - This solution is fast and easy to implement but of course not great for performance. Definitely look into the new Intersection Observer as mentioned by Apoorv and explained by developers.google if performance is an issue.
The JQuery
$(windo...
Catch All Bugs with BugTrap! - 开源 & Github - 清泛网移动版 - 专注C/C++及内核技术
...ror reports to the developer's computer by e-mail, over HTTP, or through a fast low-level TCP-based network protocol. The BugTrap server automatically manages the error reports repository, and notifies developers about any new errors.
BugTrap stores error descriptions in log and mini-dump files. ...
How can I extract a predetermined range of lines from a text file on Unix?
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The first one with head and tail WAYYYY faster on big files than the sed version, even with q-option added. head-version instant and sed version I Ctrl-C after a minute... Thanks
– Miyagi
Oct 21 '16 at 7:59
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Remove element of a regular array
...y the CPU with just a few ASM instructions). Also, shifting a list is very fast because it is just a matter of swapping a few pointers and removing the node data (which is only 8 bytes [plus another 16 for the head\tail pointers] in this case).
– krowe2
Jan 25 ...
How do I do a bulk insert in mySQL using node.js
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This is a fast "raw-copy-paste" snipped to push a file column in mysql with node.js >= 11
250k row in few seconds
'use strict';
const mysql = require('promise-mysql');
const fs = require('fs');
const readline = require('readline'...
Drawing a dot on HTML5 canvas [duplicate]
...e
function point(x, y, canvas){
canvas.strokeRect(x,y,1,1);
}
or in a faster way using fillRect because render engine will just fill one pixel.
function point(x, y, canvas){
canvas.fillRect(x,y,1,1);
}
Circle
One of the problems with circles is that it is harder for an engine to render ...
Adding a parameter to the URL with JavaScript
...
document.location.search = params;
}
This is approximately twice as fast as a regex or search based solution, but that depends completely on the length of the querystring and the index of any match
the slow regex method I benchmarked against for completions sake (approx +150% slower)
func...
continue processing php after sending http response
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Tip: I started using PHP-FPM, so I had to add fastcgi_finish_request() at the end
– vcampitelli
Sep 16 '15 at 13:18
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