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jQuery to retrieve and set selected option value of html select element
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to get/set the actual selectedIndex property of the select element use:
$("#select-id").prop("selectedIndex");
$("#select-id").prop("selectedIndex",1);
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Getting a better understanding of callback functions in JavaScript
I understand passing in a function to another function as a callback and having it execute, but I'm not understanding the best implementation to do that. I'm looking for a very basic example, like this:
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Why avoid increment (“++”) and decrement (“--”) operators in JavaScript?
...d from years of experience in C that I don't get buffer overruns (or array index out of bounds) if I keep use of it simple. But I've discovered that I do get buffer overruns if I fall into the "excessively tricky" practice of doing other things in the same statement.
So, for my own rules, the use o...
How to hash some string with sha256 in Java?
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SHA-256 isn't an "encoding" - it's a one-way hash.
You'd basically convert the string into bytes (e.g. using text.getBytes(StandardCharsets.UTF_8)) and then hash the bytes. Note that the result of the hash would also be arbitrary binary data, and if you want to represent that in a strin...
How to convert currentTimeMillis to a date in Java?
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Calendar objects are generally considered quite large, so should be avoided when possible. A Date object is going to be better assuming it has the functionality you need. "Date date=new Date(millis);" provided in the other answer by user AVD is going ...
Entity Framework - Invalid Column Name '*_ID"
...ne for you to try to make the connection between the tables. This specifically happens with ICollection and has driven me "batty" trying to figure it out.
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How to generate a new Guid in stored procedure?
...ea. While it's simple, it can affect performance when a GUID is used in an index. Have you considered using an Identity column that is an integer value instead?
Here are a couple of articles that might be helpful to read.
Performance Effects of Using GUIDs
as Primary Keys (SQL Server
Magazine)
P...
Comparing object properties in c# [closed]
...pi.Name) && pi.GetUnderlyingType().IsSimpleType() && pi.GetIndexParameters().Length == 0
let selfValue = type.GetProperty(pi.Name).GetValue(self, null)
let toValue = type.GetProperty(pi.Name).GetValue(to, null)
where selfValue != toValue &&...
How do I test for an empty string in a Bash case statement?
... text file (finder.txt) that looks like this:
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./registry/master_person_index.cgi:
SQLClinic::Security::ssn_format($user,$script_name,$local,$Local,$ssn) if $ssn ne "";
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Python memory usage of numpy arrays
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The field nbytes will give you the size in bytes of all the elements of the array in a numpy.array:
size_in_bytes = my_numpy_array.nbytes
Notice that this does not measures "non-element attributes of the array object" so the actual size in bytes can be a few bytes larger th...