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Most efficient way to remove special characters from string
I want to remove all special characters from a string. Allowed characters are A-Z (uppercase or lowercase), numbers (0-9), underscore (_), or the dot sign (.).
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How do you build a Singleton in Dart?
The singleton pattern ensures only one instance of a class is ever created. How do I build this in Dart?
15 Answers
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Understanding the meaning of the term and the concept - RAII (Resource Acquisition is Initialization
Could you C++ developers please give us a good description of what RAII is, why it is important, and whether or not it might have any relevance to other languages?
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How to save username and password with Mercurial?
I used Mercurial in a personal project, and I have been typing my username and password every time I want to push something to the server.
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How to scale a UIImageView proportionally?
I have a UIImageView and the objective is to scale it down proportionally by giving it either a height or width.
17 Answer...
Insert Update trigger how to determine if insert or update
I need to write an Insert, Update Trigger on table A which will delete all rows from table B whose one column (say Desc) has values like the value inserted/updated in the table A's column (say Col1). How would I go around writing it so that I can handle both Update and Insert cases. How would I dete...
Yes or No confirm box using jQuery
I want yes/No alerts using jQuery, instead of ok/Cancel button:
9 Answers
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How to use PyCharm to debug Scrapy projects
I am working on Scrapy 0.20 with Python 2.7. I found PyCharm has a good Python debugger. I want to test my Scrapy spiders using it. Anyone knows how to do that please?
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Parallel.ForEach vs Task.Factory.StartNew
What is the difference between the below code snippets? Won't both be using threadpool threads?
4 Answers
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How can I nullify css property?
Basically I have two external css in my page.
7 Answers
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