I have a string '["", "abc", "", "def", "", "mno", "", "", "", "", ""]'. i want to convert it into array and remove empty values from that array. my desired output is abc;def;mno.
Can someone help me to do this?
3 Answers
You could use JSON.parse and select method:
str = '["", "abc", "", "def", "", "mno", "", "", "", "", ""]'
arr = JSON.parse(str).select(&:present?)
Output array: ["abc", "def", "mno"]
If you want to get abc;def;mno:
joined = arr.join(';')
Output string: "abc;def;mno"
Hope this helps
1 Comment
Gagan Gami
for pure ruby can use
arr = JSON.parse(str).reject(&:blank?)Use this code:
str = YAML.load('["", "abc", "", "def", "", "mno", "", "", "", "", ""]')
str.select{|a| a if a != ""}.join(";")
Comments
You can parse your string with JSON#parse and use delete with join:
str = '["", "abc", "", "def", "", "mno", "", "", "", "", ""]'
JSON.parse(str).tap { |arr| arr.delete('') }.join(';')
# => "abc;def;mno"
1 Comment
John
but its a string not an array('["", "abc", "", "def", "", "mno", "", "", "", "", ""]'), how can i convert this string into an array?
string.scan(/\w+/) #=> ["abc", "def", "mno"]but not really a general solution.["abc", "def", "mno"]? (abc;def;mnois not a Ruby object, which may account for the downvote). If so, you should edit.