Rails: What's a good way to validate links (URLs)?

Rails: What's a good way to validate links (URLs)?

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How do I strip non alphanumeric characters from a string and keep spaces?

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How can I delete special characters?

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ruby-on-rails

Add http(s) to URL if it's not there?

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ruby-on-rails

How can you return everything after last slash(/) in a Ruby string [closed]

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ruby-on-rails

Ruby: Extracting Words From String

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Rails 3: Validate IP String

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Check if given string is an URL

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How to match accented characters with a regex?

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ruby-on-rails

Escape special chars in RegEx?

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ruby-on-rails

Why do Ruby's regular expressions use \A and \z instead of ^ and $?

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ruby-on-rails

Validation for URL/Domain using Regex? (Rails)

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ruby on rails, replace last character if it is a * sign

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ruby-on-rails

simple regex -- replace underscore with a space

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ruby-on-rails

How to determine if there is a match an return true or false in rails?

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