String functions
substring(string, start position)
Returns a substring of the given value starting at start position.
Function signature
substring(string: string, start position: number): string
The start position starts at the index 1. The last position is -1.
Examples
substring("foobar", 3)
// "obar"
substring(string, start position, length)
Returns a substring of the given value starting at start position.
Function signature
substring(string: string, start position: number, length: number): string
The start position starts at the index 1. The last position is -1.
Examples
substring("foobar", 3, 3)
// "oba"
string length(string)
Returns the number of characters in the given value.
Function signature
string length(string: string): number
Examples
string length("foo")
// 3
upper case(string)
Returns the given value with all characters are uppercase.
Function signature
upper case(string: string): string
Examples
upper case("aBc4")
// "ABC4"
lower case(string)
Returns the given value with all characters are lowercase.
Function signature
lower case(string: string): string
Examples
lower case("aBc4")
// "abc4"
substring before(string, match)
Returns a substring of the given value that contains all characters before match.
Function signature
substring before(string: string, match: string): string
Examples
substring before("foobar", "bar")
// "foo"
substring after(string, match)
Returns a substring of the given value that contains all characters after match.
Function signature
substring after(string: string, match: string): string
Examples
substring after("foobar", "ob")
// "ar"
contains(string, match)
Returns true if the given value contains the substring match. Otherwise, returns false.
Function signature
contains(string: string, match: string): boolean
Examples
contains("foobar", "of")
// false
starts with(string, match)
Returns true if the given value starts with the substring match. Otherwise, returns false.
Function signature
starts with(string: string, match: string): boolean
Examples
starts with("foobar", "fo")
// true
ends with(string, match)
Returns true if the given value ends with the substring match. Otherwise, returns false.
Function signature
ends with(string: string, match: string): boolean
Examples
ends with("foobar", "r")
// true
matches(input, pattern)
Returns true if the given value matches the pattern. Otherwise, returns false.
Function signature
matches(input: string, pattern: string): boolean
The pattern is a string that contains a regular expression.
Examples
matches("foobar", "^fo*bar")
// true
matches(input, pattern, flags)
Returns true if the given value matches the pattern. Otherwise, returns false.
Function signature
matches(input: string, pattern: string, flags: string): boolean
The pattern is a string that contains a regular expression.
The flags can contain one or more of the following characters:
s(dot-all)m(multi-line)i(case insensitive)x(comments)
Examples
matches("FooBar", "foo", "i")
// true
replace(input, pattern, replacement)
Returns the resulting string after replacing all occurrences of pattern with replacement.
Function signature
replace(input: string, pattern: string, replacement: string): string
The pattern is a string that contains a regular expression.
The replacement can access the match groups by using $ and the number of the group, for example,
$1 to access the first group.
Examples
replace("abcd", "(ab)|(a)", "[1=$1][2=$2]")
// "[1=ab][2=]cd"
replace("0123456789", "(\d{3})(\d{3})(\d{4})", "($1) $2-$3")
// "(012) 345-6789"
replace(input, pattern, replacement, flags)
Returns the resulting string after replacing all occurrences of pattern with replacement.
Function signature
replace(input: string, pattern: string, replacement: string, flags: string): string
The pattern is a string that contains a regular expression.
The replacement can access the match groups by using $ and the number of the group, for example,
$1 to access the first group.
The flags can contain one or more of the following characters:
s(dot-all)m(multi-line)i(case insensitive)x(comments)
Examples
replace("How do you feel?", "Feel", "FEEL", "i")
// "How do you FEEL?"
split(string, delimiter)
Splits the given value into a list of substrings, breaking at each occurrence of the delimiter pattern.
Function signature
split(string: string, delimiter: string): list<string>
The delimiter is a string that contains a regular expression.
Examples
split("John Doe", "\s" )
// ["John", "Doe"]
split("a;b;c;;", ";")
// ["a", "b", "c", "", ""]
extract(string, pattern)
Camunda Extension
Returns all matches of the pattern in the given string. Returns an empty list if the pattern doesn't match.
Function signature
extract(string: string, pattern: string): list<string>
The pattern is a string that contains a regular expression.
Examples
extract("references are 1234, 1256, 1378", "12[0-9]*")
// ["1234","1256"]