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Case-Insensitive List Search

I have a list testList that contains a bunch of strings. I would like to add a new string into the testList only if it doesn't already exist in the list. Therefore, I need to do a case-insensitive search of the list and make it efficient. I can't use Contains because that doesn't take into acc...
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How to get a specific “commit” of a gem from github?

I'm using rails_admin , and since it is in (very) active development, bugs turn up every now and then. 2 Answers ...
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When to use symbols instead of strings in Ruby?

If there are at least two instances of the same string in my script, should I instead use a symbol? 4 Answers ...
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How to round float numbers in javascript?

I need to round for example 6.688689 to 6.7 , but it always shows me 7 . 17 Answers ...
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How to list all properties of a PowerShell object

When I look at the Win32_ComputerSystem class , it shows loads of properties like Status , PowerManagementCapabilities , etc. However, when in PowerShell I do the below I only get back a couple: ...
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Why is DarkGray lighter than Gray?

Simple curiosity here, tinged with some practical concerns because I get caught out by this occasionally. 3 Answers ...
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What's the difference between .so, .la and .a library files?

I know an .so file is a kind of dynamic library (lots of threads can share such libraries so there is no need to have more than one copy of it in memory). But what is the difference between .a and .la ? Are these all static libraries? ...
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HTML5 Audio stop function

I am playing a small audio clip on click of each link in my navigation 15 Answers 15 ...
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Create a dictionary on a list with grouping

I have the following object in a list: 4 Answers 4 ...
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IF statement: how to leave cell blank if condition is false (“” does not work)

I would like to write an IF statement, where the cell is left blank if the condition is FALSE. Note that, if the following formula is entered in C1 ( for which the condition is false ) for example: ...