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How to find encoding of a file via script on Linux?
... @vladkras if there are no non-ascii chars in your utf-8 file, then it's indistinguishable from ascii :)
– vadipp
Mar 2 '17 at 10:36
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Finding the direction of scrolling in a UIScrollView?
...have bounce turned on, it will briefly be going in no direction at all and then briefly be going leftward.
To determine the direction, you'll need to use the UIScrollView scrollViewDidScroll delegate. In this sample, I created a variable named lastContentOffset which I use to compare the current co...
External template in Underscore
...:
app.templates.view = " \
<h3>something code</h3> \
";
Then, it is as simple as including the script file like a normal one and then using it in your view:
template: _.template(app.templates.view)
Taking it a step further, I actually use coffeescript, so my code actually looks...
Disable single warning error
...
Use #pragma warning ( push ), then #pragma warning ( disable ), then put your code, then use #pragma warning ( pop ) as described here:
#pragma warning( push )
#pragma warning( disable : WarningCode)
// code with warning
#pragma warning( pop )
...
How to verify an XPath expression in Chrome Developers tool or Firefox's Firebug?
...ols in Chrome with CTRL+I on Windows (or CMD+I Mac), and Firefox with F12, then select the Console tab), and check the XPath by typing $x("your_xpath_here").
This will return an array of matched values. If it is empty, you know there is no match on the page.
Firefox v66 (April 2019):
Chrome v69 ...
Convert a series of parent-child relationships into a hierarchical tree?
...' => 'E',
'B' => 'C',
'C' => 'E',
'D' => null
);
Then the function that parses that array into a hierarchical tree structure:
function parseTree($tree, $root = null) {
$return = array();
# Traverse the tree and search for direct children of the root
foreach($tr...
How to use NSCache
...untime (by downloading from the Internet, by doing calculations, whatever) then NSCache may suit your needs. If the data cannot be recreated (e.g. it's user input, it is time-sensitive, etc.) then you should not store it in an NSCache because it will be destroyed there.
Example, not taking thread s...
Read first N lines of a file in python
...
Have in mind that if the files have less then N lines this will raise StopIteration exception that you must handle
– Ilian Iliev
Jan 25 '12 at 12:44
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Is there a way to access method arguments in Ruby?
...rameter and whether it is required.
e.g.
If you do
def foo(x, y)
end
then
method(:foo).parameters # => [[:req, :x], [:req, :y]]
You can use the special variable __method__ to get the name of the current method. So within a method the names of its parameters can be obtained via
args = me...
Fastest way to remove first char in a String
...u - in which case the only way you'd know would be to have test cases, and then it's easy to just run those test cases for each option and compare the results. I'd expect Substring to probably be the fastest here, simply because Substring always ends up creating a string from a single chunk of the o...