fix nil reference (#76)

If `country['timeline']['cases'].values.reject!(&:zero?) doesn't reject anything, the result will be nil.
siaw23 · Mar 29, 2020 · 3a8f844 · 3a8f844
1 parent f1a0ea6
commit 3a8f844
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/lib/kovid/tablelize.rb b/lib/kovid/tablelize.rb
@@ -230,7 +230,7 @@ def histogram(country, date_string)
         end
 
         # From dates where number of !cases.zero?
-        positive_cases_figures = country['timeline']['cases'].values.reject!(&:zero?)
+        positive_cases_figures = country['timeline']['cases'].values.reject(&:zero?)
         dates = country['timeline']['cases'].reject { |_k, v| v.zero? }.keys
         data = []