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How to check if a map contains a key in Go?

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Generic type parameter naming convention for Java (with multiple chars)?

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How to declare std::unique_ptr and what is the use of it?

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What are the Ruby Gotchas a newbie should be warned about? [closed]

...s. To denote floating point numbers, one must follow with a zero digit (99.0) or an explicit conversion (99.to_f). It is insufficient to append a dot (99.), because numbers are susceptible to method syntax. Boolean evaluation of non-boolean data is strict: 0, "" and [] are all evaluated to true. In ...
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Remove elements from collection while iterating

...Book> books = new ArrayList<Book>(); books.add(new Book(new ISBN("0-201-63361-2"))); books.add(new Book(new ISBN("0-201-63361-3"))); books.add(new Book(new ISBN("0-201-63361-4"))); Collect and Remove The first technique consists in collecting all the objects that we want to delete (e.g. ...
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Relative paths based on file location instead of current working directory [duplicate]

... to do is get the absolute path of the script (available via ${BASH_SOURCE[0]}) and then use this to get the parent directory and cd to it at the beginning of the script. #!/bin/bash parent_path=$( cd "$(dirname "${BASH_SOURCE[0]}")" ; pwd -P ) cd "$parent_path" cat ../some.text This will make y...
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Django CharField vs TextField

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Maximum execution time in phpMyadmin

... 200 I have the same error, please go to xampp\phpMyAdmin\libraries\config.default.php Look fo...
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undefined method `source_index' for Gem:Module (NoMethodError)

... What it came down to was ruby-1.9.3-p385 had installed RubyGems version 2.0.2 for me, and 1.9.3-p327 has RubyGems v1.8.23 installed. Gem.source_index has been deprecated for a while, but since Rails 2.3 is not getting any updates except critical security patches, this will never get fixed. RubyGem...
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Binding a WPF ComboBox to a custom list

...pfApplication6.Window1" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="Window1" Height="300" Width="300"> <Grid> <StackPanel> <Button Click="Button_Click">asdf&lt...