Web Reference: Dec 5, 2011 · If you're dealing with natural language text and need to replace a word, not just part of a string, you have to add a pinch of regular expressions to your gsub as a plain text substitution can lead to disastrous results: Each of these methods takes: A first argument, pattern (String or Regexp), that specifies the substring (s) to be replaced. A second argument, replacement (String or Hash), that determines the replacing string. A block that will determine the replacing string. In Ruby, string replacements can be done with the sub() or gsub methods. These are substitution methods. Gsub applies the substitution globally. We can use strings or regular expressions as the arguments to these methods. With special codes like "\1" we can insert parts of the match into a replacement. Example Let us begin with this example. We ...
YouTube Excerpt: Having the ability to swap out values of a word is an important feature to have in many applications,
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