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Get last record in a queryset
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Django >= 1.6
Added QuerySet methods first() and last() which are convenience methods returning the first or last object matching the filters. Returns None if there are no objects matching.
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Regular Expressions- Match Anything
...ne so you will match on line endings.
There is a great explanation here -> http://www.regular-expressions.info/dot.html
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Include only certain file types when searching in Visual Studio
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In the Find dialog box, go to "find options->Look at these file types".
Type in you own string, eg, *.cs, *.aspx, *.ascx. The click the "find all" button.
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How can I show ellipses on my TextView if it is greater than the 1 line?
...tically like this (where tv is your TextView):
if (tv.getLineCount() > 1) {
int lineEndIndex = tv.getLayout().getLineEnd(0);
String text = tv.getText().subSequence(0, lineEndIndex - 3) + "\u2026";
tv.setText(text);
}
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How to get just the parent directory name of a specific file
...ath():
FilenameUtils.getFullPathNoEndSeparator(file.getAbsolutePath());
=> C:/aaa/bbb/ccc/ddd
There are several variants to retain/drop the prefix and trailing separator. You can either use the same FilenameUtils class to grab the name from the result, use lastIndexOf, etc.
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jQuery .on('change', function() {} not triggering for dynamically created inputs
...handleChange }, 'input'); plus the function const handleChange = (event) => { $(event.target)... It's nice to avoid the troublesome this.
– Dem Pilafian
Dec 25 '19 at 20:57
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Removing duplicate rows in vi?
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From command line just do:
sort file | uniq > file.new
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addEventListener not working in IE8
...r, and this will work also for newly added elements. This requires jQuery >= 1.7
Otherwise use delegate()
$('idOfYourTable').delegate("input:checkbox", "click", function(){
});
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improv...
Detect Android phone via Javascript / jQuery
... navigator.userAgent.toLowerCase();
var isAndroid = ua.indexOf("android") > -1; //&& ua.indexOf("mobile");
if(isAndroid) {
// Do something!
// Redirect to Android-site?
window.location = 'http://android.davidwalsh.name';
}
PHP:
$ua = strtolower($_SERVER['HTTP_USER_AGENT']);
if(st...
POST Content-Length exceeds the limit
... var fileSize = this.files[0].size/1024/1024;
if (fileSize > 2) { // 2M
alert('Your custom message for max file size exceeded');
$('#your_input_file_id').val('');
}
});
});
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