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How to recursively find the latest modified file in a directory?
...might be hard for sort to keep everything in memory.
%T@ gives you the modification time like a unix timestamp, sort -n sorts numerically, tail -1 takes the last line (highest timestamp), cut -f2 -d" " cuts away the first field (the timestamp) from the output.
Edit: Just as -printf is probably GNU...
Deleting all files from a folder using PHP?
...mp/*'); // get all file names
foreach($files as $file){ // iterate files
if(is_file($file))
unlink($file); // delete file
}
If you want to remove 'hidden' files like .htaccess, you have to use
$files = glob('path/to/temp/{,.}*', GLOB_BRACE);
...
Split string every nth character?
...ve answer is really only just a for loop but expressed pythonically. Also, if you need to remember a "simplistic" answer, there are at least hundreds of thousands of ways to remember them: starring the page on stackoverflow; copying and then pasting into an email; keeping a "helpful" file with stuff...
CreateElement with id?
I'm trying to modify this code to also give this div item an ID, however I have not found anything on google, and idName does not work. I read something about append , however it seems pretty complicated for a task that seems pretty simple, so is there an alternative? Thanks :)
...
Get the value of checked checkbox?
...ByClassName('messageCheckbox');
for(var i=0; inputElements[i]; ++i){
if(inputElements[i].checked){
checkedValue = inputElements[i].value;
break;
}
}
share
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improv...
How to grab substring before a specified character jQuery or JavaScript
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This will not work if the string being searched does not contain an instance of the search character. It will return an empty string.
– David G
Aug 20 '15 at 19:48
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What is meaning of boolean value returned from an event-handling method in Android
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If you return true from an ACTION_DOWN event you are interested in the rest of the events in that gesture. A "gesture" in this case means all events until the final ACTION_UP or ACTION_CANCEL. Returning false from an ACTION_D...
Disable back button in android
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Override the onBackPressed method and do nothing if you meant to handle the back button on the device.
@Override
public void onBackPressed() {
if (shouldAllowBack()) {
super.onBackPressed();
} else {
doSomething();
}
}
...
Count the number of occurrences of a character in a string in Javascript
...g")) || []).length); //logs 4
jsfiddle
Use a regular expression literal if you know what you are searching for beforehand, if not you can use the RegExp constructor, and pass in the g flag as an argument.
match returns null with no results thus the || []
The original answer I made in 2009 is be...
Undo scaffolding in Rails
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First, if you have already run the migrations generated by the scaffold command, you have to perform a rollback first.
rake db:rollback
You can create scaffolding using:
rails generate scaffold MyFoo
(or similar), and you can...