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How to trigger event when a variable's value is changed?
... Studio. I want to create some code so that when a variable has a value of 1 then a certain piece of code is carried out.
I know that I can use an if statement but the problem is that the value will be changed in an asynchronous process so technically the if statement could be ignored before the val...
In a Django form, how do I make a field readonly (or disabled) so that it cannot be edited?
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As pointed out in this answer, Django 1.9 added the Field.disabled attribute:
The disabled boolean argument, when set to True, disables a form field using the disabled HTML attribute so that it won’t be editable by users. Even if a user tampers with the fie...
JavaScript equivalent to printf/String.Format
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ipython notebook clear cell output in code
...utput of a cell.
from IPython.display import clear_output
for i in range(10):
clear_output(wait=True)
print("Hello World!")
At the end of this loop you will only see one Hello World!.
Without a code example it's not easy to give you working code. Probably buffering the latest n events i...
How to move one word left in the vi editor
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edited Dec 15 '19 at 1:05
Peter Mortensen
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Why does += behave unexpectedly on lists?
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141
The general answer is that += tries to call the __iadd__ special method, and if that isn't ava...
Counting occurrences in Vim without marking the buffer changed
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166
To avoid the substitution, leave the second pattern empty, and add the “n” flag:
:%s/patt...
SQL Server Text type vs. varchar data type [closed]
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If you're using SQL Server 2005 or later, use varchar(MAX). The text datatype is deprecated and...
How to convert a java.util.List to a Scala list
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import scala.collection.JavaConversions._
will do implicit conversion for you; e.g.:
var list...
How to skip over an element in .map()?
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