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Finding the type of an object in C++
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edited Jun 26 at 0:11
Richard Chambers
13.5k33 gold badges5656 silver badges8484 bronze badges
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How to determine if a record is just created or updated in after_save
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edited Nov 10 '17 at 19:39
answered Aug 25 '11 at 0:41
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Inserting a Python datetime.datetime object into MySQL
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200
For a time field, use:
import time
time.strftime('%Y-%m-%d %H:%M:%S')
I think strftime a...
Finding ALL duplicate rows, including “elements with smaller subscripts”
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130
duplicated has a fromLast argument. The "Example" section of ?duplicated shows you how to use i...
What are the differences between Rust's `String` and `str`?
...e bytes, and a length."
– mrec
Oct 10 '16 at 16:23
13
It's not out of date (that representation h...
How do I fit an image (img) inside a div and keep the aspect ratio?
... = function() {
if(img.height > img.width) {
img.height = '100%';
img.width = 'auto';
}
};
}());
</script>
CSS
#container {
width: 48px;
height: 48px;
}
#container img {
width: 100%;
}
If you use a JavaScript Library you might want to take advantage o...
Xcode debugging - displaying images
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edited Jun 20 at 9:12
Community♦
111 silver badge
answered Oct 30 '13 at 2:14
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How can I give eclipse more memory than 512M?
I have following setup, but when I put 1024 and replace all 512 with 1024, then eclipse won't start at all. How can I have more than 512M memory for my eclipse JVM?
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How does Java Garbage Collection work with Circular References?
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edited Oct 11 '17 at 7:00
Holger
221k2828 gold badges321321 silver badges597597 bronze badges
answere...
What is the C# equivalent of NaN or IsNumeric?
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This doesn't have the regex overhead
double myNum = 0;
String testVar = "Not A Number";
if (Double.TryParse(testVar, out myNum)) {
// it is a number
} else {
// it is not a number
}
Incidentally, all of the standard data types, with the glaring exception of GUIDs, suppo...