# Replace first value a return new string
sentence = 'pop poper'
sentence.sub('pop', 'stop')
=> 'stop poper'
puts sentence
=> 'pop poper'
# Replace all matches and return new string
sentence = 'pop poper'
sentence.gsub('pop', 'stop')
=> 'stop stoper'
puts sentence
=> 'pop poper'
# Replace first value and update existing string
sentence = 'pop poper'
sentence.sub!('pop', 'stop')
=> 'stop poper'
puts sentence
=> 'stop poper'
# Replace all matches and update string
sentence = 'pop poper'
sentence.gsub!('pop', 'stop')
=> 'stop stoper'
puts sentence
=> 'stop stoper'
user_input = "mooventhan"
user_input.gsub!(/moo/, "hel")
print user_inputmyString = "Welcome to JavaScript!"
myString["JavaScript"]= "Ruby"
puts myString
=> "Welcome to Ruby!"
| Code Example |
|---|
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| Ruby :: write heroku logs |
| Ruby :: time_ago_in_words for created_at model in rails |
| Ruby :: redis localhost url |
| R :: dplyr replace na |
| R :: r how to import tsv file |
| R :: loop through list in r |
| R :: if not i startswith r |
| R :: r list append |
| R :: line split r |
| R :: rstudio could not find function ggplot |
| R :: how to select certain rows containing a word in r |
| R :: rename columns in table r |
| R :: expression in r |
| R :: switch in r |
| R :: how to read multiple csv files from a directory in r |
| R :: convert a matrix to a vector in r |
| R :: subset row r |
| R :: rnorm in r |
| R :: R vector all but last |
| R :: rename a variable in r |
| R :: named list in r |
| R :: Score pairs of records probabilistically in r |
| R :: Add tab in string r |
| R :: faceted bar chart in r |
| R :: ggplot2 color gradient |
| R :: legend in r |
| Rust :: array as a parameter rust |
| Rust :: rust read lines from stdin and return a vec |
| Rust :: calculator in rust |