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Adding git branch on the Bash command prompt
...and substitution, and arithmetic expansion.
Rather than include the raw, unescaped branch name in PS1 when running in two- or
three-argument mode, construct PS1 to reference a variable that holds the branch name.
Because the shells do not recursively expand, this avoids arbitrary cod...
How to show SQL queries run in the Rails console?
... the job and not .to_sql. And .explain still does not provide sql query in raw format which I can run in pg console. But I needed the raw query to explain and analyze. I guess will have to do with explain for now.
– abhishek77in
Jun 5 at 8:20
...
Hidden features of Perl?
...{...} quoting constructs were mentioned, but did you know that you can use letters as delimiters?
$ perl -Mstrict -wle 'print q bJet another perl hacker.b'
Jet another perl hacker.
Likewise you can write regular expressions:
m xabcx
# same as m/abc/
...
Vertical (rotated) label in Android
... drawTextOnPath() draws the text like it was rotated, same as 1. To write letters one under the other, either use \n after each character or if you have a fixed-width font, limit the TextView width to fit just one character.
– blub
Oct 10 '13 at 15:02
...
Make column not nullable in a Laravel migration
...ering an existing table column using the schema builder. You'd need to use raw queries for this.
However, as of Laravel 5 you can use:
$table->...->nullable(false)->change();
share
|
imp...
PHP function to make slug (URL string)
...e, try this one:
public static function slugify($text)
{
// replace non letter or digits by -
$text = preg_replace('~[^\pL\d]+~u', '-', $text);
// transliterate
$text = iconv('utf-8', 'us-ascii//TRANSLIT', $text);
// remove unwanted characters
$text = preg_replace('~[^-\w]+~', '', $te...
Why is there an unexplainable gap between these inline-block div elements? [duplicate]
...
box-sizing:border-box;
white-space:nowrap;
font-size:0pt;
letter-spacing:-1em;
}
.cols {
display:inline-block;
position:relative;
width:32%;
height:100%;
margin:0 auto;
margin-right:2%;
border:0px;
background:lightgreen;
box-sizing:border-box;
...
Why does Node.js' fs.readFile() return a buffer instead of string?
...
From the docs:
If no encoding is specified, then the raw buffer is returned.
Which might explain the <Buffer ...>. Specify a valid encoding, for example utf-8, as your second parameter after the filename. Such as,
fs.readFile("test.txt", "utf8", function(err, data) {.....
How do I stop a web page from scrolling to the top when a link is clicked that triggers JavaScript?
... using addEventListener to bind your handlers, it will be an Event and the raw DOM version of .preventDefault(). Either way will do what you need.
Examples:
$('#ma_link').click(function($e) {
$e.preventDefault();
doSomething();
});
document.getElementById('#ma_link').addEventListener('cli...
What's the difference between Unicode and UTF-8? [duplicate]
... defines a mapping between a set of named characters (e.g., "Latin Capital Letter A" or "Greek small letter alpha") and a set of code points (a number assigned to each -- for example, 61 hexadecimal and 3B1 hexadecimal for those two respectively; for Unicode code points, the standard notation would ...