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Can we instantiate an abstract class?
...that here: -
Whenever a new class instance is created, memory space is allocated
for it with room for all the instance variables declared in the class
type and all the instance variables declared in each superclass of the
class type, including all the instance variables that may be hidden....
Postgres: clear entire database before re-creating / re-populating from bash script
...elopment_db_name
$ createdb developmnent_db_name
That's how I do it, actually.
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Merging without whitespace conflicts
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git merge -Xignore-all-space
Or (more precise)
git merge -Xignore-space-change
should be enough to ignore all space related conflicts during the merge.
See git diff:
--ignore-space-change
Ignore changes in amount of whitespace.
T...
Syntax behind sorted(key=lambda: …)
...
key is a function that will be called to transform the collection's items before they are compared. The parameter passed to key must be something that is callable.
The use of lambda creates an anonymous function (which is callable). In the case of sorted ...
How to improve performance of ngRepeat over a huge dataset (angular.js)?
... pagination or with an infinite scroll.
Infinite scroll with Angular is really simple with limitTo filter. You just have to set the initial limit and when the user asks for more data (I am using a button for simplicity) you increment the limit.
<table>
<tr ng-repeat="d in data | limi...
What is referential transparency?
...ther words, it is the closest subject outside computer science to what we call programming language semantics. The philosopher Willard Quine was responsible for initiating the concept of referential transparency, but it was also implicit in the approaches of Bertrand Russell and Alfred Whitehead.
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What's the difference between faking, mocking, and stubbing?
...some information :
From Martin Fowler about Mock and Stub
Fake objects actually have working implementations, but usually take some shortcut which makes them not suitable for production
Stubs provide canned answers to calls made during the test, usually not responding at all to anything outside what...
MySQL: Fastest way to count number of rows
...olumn indexes, so it will be the best result. Mysql with MyISAM engine actually stores row count, it doensn't count all rows each time you try to count all rows. (based on primary key's column)
Using PHP to count rows is not very smart, because you have to send data from mysql to php. Why do it whe...
Rebuild IntelliJ project indexes
IntelliJ IDEA 10.5.1 is reporting zero usages for all method, classes etc.
2 Answers
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How do I remedy “The breakpoint will not currently be hit. No symbols have been loaded for this docu
...ugging, as soon as you've arrived at a breakpoint or used Debug > Break All, use Debug > Windows > Modules. You'll see a list of all the assemblies that are loaded into the process. Locate the one you want to get debug info for. Right-click it and select Symbol Load Information. You'll ...