String methods

You can find more info about the particular regex syntax used in the *_regex methods on this link.
.to_uppercase()
Return the same string in all uppercase characters.
string.to_uppercase() => String
​
// example
do val = "Where is Brian?"
do val.to_uppercase() // "WHERE IS BRIAN?"
.to_lowercase()
Return the same string in all lowercase characters.
string.to_lowercase() => String
​
// example
do val = "Where is Brian?"
do val.to_lowercase() // "where is brian?"
.length()
Return the length of the target string.
string.length() => Integer
​
// example
do val = "Where is Brian?"
do val.length() // 15
.contains(String), .contains_regex(String)
Return whether the string contains another string or expression.
haystack.contains(needle) => Boolean
haystack.contains_regex(needle) => Boolean
​
// example
do val = "Where is Brian?"
// does it contain any "r"?
do val.contains("r") // true
// does it contain the word "where"?
do val.contains("where") // false => no, because it is case sensitive
// does it contain any number?
do val.contains_regex("[0-9]") // true
.starts_with(String), .starts_with_regex(String)
Return whether a string starts with another string or expression.
haystack.starts_with(needle) => Boolean
haystack.starts_with_regex(needle) => Boolean
​
// example
do val = "Where is Brian?"
// does it start with "r"?
do val.starts_with("r") // false
// does it start with any uppercase letter?
do val.starts_with_regex("[A-Z]") // true
.ends_with(String), .ends_with_regex(String)
Return whether a string ends with another string or expression.
haystack.ends_with(needle) => Boolean
haystack.ends_with_regex(needle) => Boolean
​
// example
do val = "Where is Brian?"
// does it end with "r"?
do val.ends_with("r") // false
// does it end with any uppercase letter?
do val.ends_with_regex("[A-Z]") // false
.match(String), .match_regex(String)
Return all the matches of the string or expression in the target string, or Null if none are found.
haystack.match(needle) => Array[String]
haystack.match_regex(needle) => Array[String]
​
// example
do val = "Where is Brian?"
// does it match with "r"?
do val.match("r") // ["r", "r"] => yes, twice!
// does it match with any uppercase letter?
do val.match_regex("[A-Z]") // ["W", "B"] => yes, and these are the letters!
.is_number()
Return whether the given string represents a numerical value.
string.is_number() => Boolean
​
// example
do val = "Where is Brian?"
do val.is_number() // false
​
do val = "42"
do val.is_number() // true
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Last updated 4 months ago