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is there a require for json in node.js
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As of node v0.5.x yes you can require your JSON just as you would require a js file.
var someObject = require('./somefile.json')
In ES6:
import someObject from ('./somefile.json')
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Change UICollectionViewCell size on different device orientations
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// Adjust cell size for orientation
if (UIDeviceOrientationIsLandscape([[UIApplication sharedApplication] statusBarOrientation])) {
return CGSizeMake(170.f, 170.f);
}
return CGSizeMake(192.f, 192.f);
}
- (void)didRotateFromInterfaceOrientation:(UIInterfaceOrientation)fromIn...
make arrayList.toArray() return more specific types
...mmended to write:
String[] a = list.toArray(new String[list.size()]);
because the internal implementation would realloc a properly sized array anyway so you were better doing it upfront. Since Java6 the empty array is preferred, see .toArray(new MyClass[0]) or .toArray(new MyClass[myList.size()])...
For files in directory, only echo filename (no path)
...es Parameter Expansion which is native to the shell and does not require a call to an external binary such as basename
However, might I suggest just using find
find /home/user -type f -printf "%f\n"
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Difference between validate(), revalidate() and invalidate() in Swing GUI
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revalidate() does not call doLayout(), which validate() does. So it is not really a sum of both - revalidate is not always a valid replacement for validate.
– Meo
Jun 5 '18 at 10:28
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Why does writeObject throw java.io.NotSerializableException and how do I fix it?
...in turn their fields, some of which do not implement Serializable. In your case the offending class is TransformGroup. How to solve it?
if the class is yours, make it Serializable
if the class is 3rd party, but you don't need it in the serialized form, mark the field as transient
if you need its d...
What is PEP8's E128: continuation line under-indented for visual indent?
... name='investment-listing'))
I suggest taking a read through PEP-8 - you can skim through a lot of it, and it's pretty easy to understand, unlike some of the more technical PEPs.
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How to get element by classname or id
... = element[0].getElementsByClassName('multi-files');
}
Alternatively you can use the document.querySelector function (need the period here if selecting by class):
var queryResult = element[0].querySelector('.multi-files');
var wrappedQueryResult = angular.element(queryResult);
Demo: http://plnk...
How to catch SQLServer timeout exceptions
I need to specifically catch SQL server timeout exceptions so that they can be handled differently. I know I could catch the SqlException and then check if the message string Contains "Timeout" but was wondering if there is a better way to do it?
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How to define two fields “unique” as couple
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There is a simple solution for you called unique_together which does exactly what you want.
For example:
class MyModel(models.Model):
field1 = models.CharField(max_length=50)
field2 = models.CharField(max_length=50)
class Meta:
unique_together = (...