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Check if page gets reloaded or refreshed in JavaScript
...n only store string values in session and local storage. Therefore true is converted to "true". 2). Session storage persists until the user closes the browser window, so you can't tell the difference between page reload and navigating away from and back to you site within the same browser session.
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How to correctly display .csv files within Excel 2013?
... can change the encoding of the CSV in Notepad++ too.
Menu Encoding > Convert to UTF-8 without BOM
Save the CSV file
Open in Excel, columns should be split
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Display numbers with ordinal suffix in PHP
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PHP has built-in functionality for this. It even handles internationalization!
$locale = 'en_US';
$nf = new NumberFormatter($locale, NumberFormatter::ORDINAL);
echo $nf->format($number);
Note that this functionality is only available in PHP 5.3.0 and later.
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How to check if object property exists with a variable holding the property name?
...with "in"' operator the left expression must be a string or value that can converts into a string. Yes, you cannot write 'length' in 'qqq' but you cannot write 'qqq'.hasOwnProperty('length') either
– Wachburn
Jul 21 '15 at 17:18
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WHERE vs HAVING
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If your calculated expression does not contain any aggregates, putting it into the WHERE clause will most probably be more efficient.
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Trimming a huge (3.5 GB) csv file to read into R
... rows (leading Access and SQL to choke). It's county level data set broken into segments, sub-segments, and sub-sub-segments (for a total of ~200 factors) for 40 years. In short, it's huge, and it's not going to fit into memory if I try to simply read it.
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String variable interpolation Java [duplicate]
...should avoid String.format. Check performance comparison among Java string interpolation from redfin.
– MiaeKim
Oct 22 '19 at 22:18
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SQL MAX of multiple columns?
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Necro'ing this older post, but you could wrap each date into a COALESCE to handle NULL's. One of those WHEN statements would then look like: WHEN Date1 >= COALESCE(Date2,'') AND Date1 >= COALESCE(Date3,'') THEN Date3 (do the same for the other when's)
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How to check if a String contains only ASCII?
...I singleton.
Here ASCII includes all ASCII characters including the non-printable characters lower than 0x20 (space) such as tabs, line-feed / return but also BEL with code 0x07 and DEL with code 0x7F.
This code incorrectly uses characters rather than code points, even if code points are indicated...
Node.js check if path is file or directory
.../ Very few fs allow this. But still. Don't trust the filesystem alone!
// Converts the non-standard "path-ends-in-slash" to the standard "path-is-identified-by current "." or previous ".." directory symbol.
function tryGetPath(pathItem) {
const isPosix = pathItem.includes("/");
if ((isPosix...