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How to remove/ignore :hover css style on touch devices
...r for them.
If you're able to use an internet duct-tape language such as PHP or Ruby, you can check the user string of the device requesting a page, and simply serve the same content but with a <link rel="mobile.css" /> instead of the normal style.
User strings have identifying information...
Passing command line arguments to R CMD BATCH
...ommandArgs() makes processing command line arguments pretty easy.
As an example, here is a little script -- call it "myScript.R":
## myScript.R
args <- commandArgs(trailingOnly = TRUE)
rnorm(n=as.numeric(args[1]), mean=as.numeric(args[2]))
And here is what invoking it from the command line lo...
how do I strip white space when grabbing text with jQuery?
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This removes leading and trailing white space like the PHP trim function.
– Paul
Mar 29 '12 at 18:21
1
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How to redirect output to a file and stdout
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The command you want is named tee:
foo | tee output.file
For example, if you only care about stdout:
ls -a | tee output.file
If you want to include stderr, do:
program [arguments...] 2>&1 | tee outfile
2>&1 redirects channel 2 (stderr/standard error) into channel 1 (s...
How can I check a C# variable is an empty string “” or null? [duplicate]
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Very simple and useful. I wish PHP could have something like this
– Andrew Liu
Dec 17 '15 at 5:23
6
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Tetris-ing an array
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$common = PHP_INT_MAX;
foreach ($a as $item) {
$common = min($common, str_common($a[0], $item, $common));
}
$result = array();
foreach ($a as $item) {
$result[] = substr($item, $common);
}
print_r($result);
function s...
Perform .join on value in array of objects
...ensions. You can do [x.name for x of users] (spec wiki.ecmascript.org/doku.php?id=harmony:array_comprehensions) . Worth mentioning that just like using map/reduce/filter isn't very 'pythonic' the other way probably holds in JavaScript. CoffeeScript is cool with them though coffeescript.org .
...
PHP regular expressions: No ending delimiter '^' found in
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PHP regex strings need delimiters. Try:
$numpattern="/^([0-9]+)$/";
Also, note that you have a lower case o, not a zero. In addition, if you're just validating, you don't need the capturing group, and can simplify the rege...
Styling twitter bootstrap buttons
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@include button-variant(red, white, blue);
}
Bootstrap 4 Alpha SASS Example
Bootstrap 3 LESS
.my-btn {
//.button-variant(@btn-primary-color; @btn-primary-bg; @btn-primary-border);
.button-variant(red; white; blue);
}
Bootstrap 3 LESS Example
Bootstrap 3 SASS
.my-btn {
//@include but...
Illegal mix of collations MySQL Error
...your connect. You client library may support more elegant method to do it (php::mysqli does, php::mysql does not).
– Quassnoi
Jun 17 '09 at 19:04
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