Webb11 apr. 2024 · In most cases, it’s enough to collect all rows in an array and then call uniq on the array to get distinct values. ... Empty rows. By default, the standard Ruby library for parsing CSV format does not care about the empty rows and return them while parsing so it’s your responsibility to catch them and handle them properly. WebbNote that an empty string is also a value, and will be preserved: ... Key with no values (such as an empty object or array) will return nothing: assert.equal ... , similar to what Ruby on Rails and others do when submitting forms. var sentinel = qs.stringify({ a: '☺'}, ...
Checking for empty elements within my array - Ruby
Webb30 sep. 2014 · If you are using Rails (or a standalone ActiveSupport), starting from version 6.1, there is a compact_blank method which removes blank values from arrays. It uses … Webb24 maj 2012 · It acts as if you cant call the loop through an array of comments because it is empty. I tried adding <% if @micropost.comments.any? $> on line 13 so that it … beci elam
ore data: Loop over more than one hash key in ruby
Webb11 mars 2024 · How do I create an empty array in YAML? ruby arrays yaml 121,233 Try using [], like: empty_array: [] Copy So in Ruby you have: x = YAML:: load ( "empty_array: []" ) x # = > { "empty_array" = > []} 121,233 Related videos on Youtube 18 : 05 Yaml Tutorial Learn YAML in 18 mins TechWorld with Nana 368231 08 : 52 Webb30 mars 2024 · [nil, ''].blank? returns false. An array of blank values is not considered as blank. This time, I find it logical because the method blank evaluates the array, not what's … WebbIn the first form, if no arguments are sent, the new array will be empty. When a size and an optional default are sent, an array is created with size copies of default. Take notice that … dj baldo