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Is there an “exists” function for jQuery?
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2520
In JavaScript, everything is 'truthy' or 'falsy', and for numbers 0 means false, everything else...
Groovy: what's the purpose of “def” in “def x = 0”?
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edited Oct 11 '08 at 16:09
answered Oct 9 '08 at 3:51
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Inserting code in this LaTeX document with indentation
...t}):
\usepackage{listings}
\usepackage{color}
\definecolor{dkgreen}{rgb}{0,0.6,0}
\definecolor{gray}{rgb}{0.5,0.5,0.5}
\definecolor{mauve}{rgb}{0.58,0,0.82}
\lstset{frame=tb,
language=Java,
aboveskip=3mm,
belowskip=3mm,
showstringspaces=false,
columns=flexible,
basicstyle={\small\ttfa...
How I can I lazily read multiple JSON values from a file/stream in Python?
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20
Here's a much, much simpler solution. The secret is to try, fail, and use the information in th...
Turn off iPhone/Safari input element rounding
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670
On iOS 5 and later:
input {
border-radius: 0;
}
input[type="search"] {
-webkit-appearanc...
Generate list of all possible permutations of a string
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70
There are several ways to do this. Common methods use recursion, memoization, or dynamic program...
Python Pandas: Get index of rows which column matches certain value
...[i] returns the ith row of df. i does not refer to the index label, i is a 0-based index.
In contrast, the attribute index returns actual index labels, not numeric row-indices:
df.index[df['BoolCol'] == True].tolist()
or equivalently,
df.index[df['BoolCol']].tolist()
You can see the differenc...
Insert string at specified position
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+50
$newstr = substr_replace($oldstr, $str_to_insert, $pos, 0);
http://php.net/substr_replace
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Show a number to two decimal places
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return number_format((float)$number, 2, '.', '');
Example:
$foo = "105";
echo number_format((float)$foo, 2, '.', ''); // Outputs -> 105.00
This function returns a string.
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improv...
Is it possible to disable floating headers in UITableView with UITableViewStylePlain?
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edited Dec 8 '16 at 21:05
shim
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answered Jul 2...