Finding methods in classes and objects using regexp

If you are lucky enough to have Pry gem installed you can use

pry(main)> ls 'string' -G cas

ls is a built-in functionality in Pry, -G means that you want to search using a regular expression

If you want to achieve simillar resault in IRB you may try this

irb(main):001:0> 'string'.methods.grep /cas/

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