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Remove blank attributes from an Object in Javascript
... null,
test2 : 'somestring',
test3 : 3,
}
function clean(obj) {
for (var propName in obj) {
if (obj[propName] === null || obj[propName] === undefined) {
delete obj[propName];
}
}
}
clean(test);
If you're concerned about this property removal not running up object's pro...
Creating the Singleton design pattern in PHP5
... You should be using $inst = new self(); not $inst = new UserFactory(); for anyone coming across this later. +1 for using a built in PHP methodology.
– Ligemer
Feb 18 '15 at 3:27
...
How to deal with floating point number precision in JavaScript?
... If you just don’t want to see all those extra decimal places: simply
format your result rounded to a fixed
number of decimal places when
displaying it.
If you have no decimal datatype available, an alternative is to work
with integers, e.g. do money
calculations entirely in cents. Bu...
JavaScript open in a new window, not tab
...
Give the window a 'specs' parameter with width/height. See here for all the possible options.
window.open(url, windowName, "height=200,width=200");
When you specify a width/height, it will open it in a new window instead of a tab.
...
What are inline namespaces for?
...ymbol versioning, but implemented purely at the C++11 level (ie. cross-platform) instead of being a feature of a specific binary executable format (ie. platform-specific).
It is a mechanism by which a library author can make a nested namespace look and act as if all its declarations were in the sur...
Temporarily disable auto_now / auto_now_add
...e recently faced this situation while testing my application. I needed to "force" an expired timestamp. In my case I did the trick by using a queryset update. Like this:
# my model
class FooBar(models.Model):
title = models.CharField(max_length=255)
updated_at = models.DateTimeField(auto_no...
Convert from List into IEnumerable format
How shall I do in order to convert _Book_List into IEnumerable format?
6 Answers
6...
Sort Go map values by keys
...ys in slice in sorted order
keys := make([]int, len(m))
i := 0
for k := range m {
keys[i] = k
i++
}
sort.Ints(keys)
// To perform the opertion you want
for _, k := range keys {
fmt.Println("Key:", k, "Value:", m[k])
}
}
Output:
Key: 0 Value: ...
How do I view the SQL generated by the Entity Framework?
...
You won't get SQL for queries ending with .Single(), .Count(), .Any(), etc. that way.
– springy76
Feb 27 '13 at 12:31
...
Sending HTTP POST Request In Java
...'m posting this update.
By the way, you can access the full documentation for more examples here.
HttpClient httpclient = HttpClients.createDefault();
HttpPost httppost = new HttpPost("http://www.a-domain.com/foo/");
// Request parameters and other properties.
List<NameValuePair> params = n...