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Reference: What is variable scope, which variables are accessible from where and what are “undefined
What is "variable scope" in PHP? Are variables from one .php file accessible in another? Why do I sometimes get "undefined variable" errors?
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How to prevent a click on a '#' link from jumping to top of page?
I'm currently using <a> tags with jQuery to initiate things like click events, etc.
23 Answers
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How to trim a string in SQL Server before 2017?
In SQL Server 2017, you can use this syntax, but not in earlier versions:
7 Answers
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Memcache Vs. Memcached [duplicate]
Someone can explain me the difference between Memcache and Memcached in PHP environment?
What are the advantages of one over the other?
Can you also suggest the criteria used to choose between one or the other?
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Set initial focus in an Android application
In my Android application it automatically focuses the first Button I have in my layout, giving it an orange outline. How can I set the initial focus preferably in XML, and can this be set to nothing?
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Get the Highlighted/Selected text
Is it possible to get the highlighted text in a paragraph of a website e.g. by using jQuery?
5 Answers
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Identifying and removing null characters in UNIX
I have a text file containing unwanted null characters (ASCII NUL, \0 ). When I try to view it in vi I see ^@ symbols, interleaved in normal text. How can I:
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Correct way to define Python source code encoding
PEP 263 defines how to declare Python source code encoding.
6 Answers
6
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How do I remove all .pyc files from a project?
I've renamed some files in a fairly large project and want to remove the .pyc files they've left behind. I tried the bash script:
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MongoDB drop every database
I would like to know if there're a command to drop every databases from my MongoDB?
8 Answers
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