String

Function	Description
capitalize	Make the first character have upper case and the rest lower case
chr	Get character from ASCII code
concat concatenate	String concatenation
initcap	Capitalize words
lower	Lowercase string
lpad	Pad the left-side of string
ltrim	Remove leading chars
replace	Searches a string for a specified value and returns a new string where the specified values are replaced
match	Returns an array containing all matches, including capturing groups, or null if no matches are found
mask	General-purpose function that mask parts of arbitrary strings based on position within the string
parse	Parses a text string as JSON, optionally transforming the value produced by the parse.
rpad	Pad the right-side of string
rtrim	Remove trailing spaces
substr substring	Get a substring of string
trim	Remove characters
upper	Uppercase string
startWith	Indicates whether a text string begins with the characters of a given text string.
strCount	Count value in source
stringify	Convert a JavaScript object or value to a JSON text string.
template	Are literal strings that enable the use of embedded expression
test	Try a match on a string. Returns true or false
isEmpty	Evaluate if it is empty
toString	Convert to string
$ ${}	Get environment variable

Examples

Context:

const context = 
{ firstName: 'Juan'
, lastName: 'Lopez'
, email: 'jlopez@email.com'
, age: 44
, food: 'pizza'
, film: 'Estación central'
, a: null
, b: ''
, c: ' '
}

Example	Result
capitalize(food)	'Pizza'
chr(68)	'D'
concat(lastName,", ",firstName)	'Lopez, Juan'
concatenate(lastName,", ",firstName)	'Lopez, Juan'
initcap(film)	'Estación Central'
lower(film)	'estación central'
lpad(firstName,10,"_")	'______Juan'
ltrim(" a ")	'a '
replace(film,"a","*")	'Estción centrl'
mask(email)	'jlo*****com'
rpad(firstName,10,"_")	'Juan______'
rtrim(" a ")	' a'
substr(film,1,3)	'st'
substring(film,1,3)	'st'
upper(film)	'ESTACIÓN CENTRAL'
startWith(film,"E")	true
strCount(film,"a")	2
${firstName} is ${age} years old and likes ${food}	'Juan is 44 years old and likes pizza'
test("5","[a-zA-Z0-9_.]+$")	true
test("%","[a-zA-Z0-9_.]+$")	false
isEmpty(a)	true
isEmpty(b)	true
isEmpty(c)	true
isEmpty(food)	false
$HOME	'/home/flavio'
${USER}	'flavio'
concat($HOME,$USER)	'/home/flavioflavio'
concat(${HOME},$USER)	'/home/flavioflavio'
value of home: $HOME	'value of home: /home/flavio'

Definition

chr

• description: Get character from ASCII code
• deterministic: true
• return: string
• params:
  • ascii: number

strCount

• description: Count value in source
• deterministic: true
• return: number
• params:
  • source: string
  • value: string

initcap

• description: Capitalize words
• deterministic: true
• return: string
• params:
  • value: string

lower

• description: Lowercase string
• deterministic: true
• return: string
• params:
  • value: string

lpad

• description: Pad the left-side of string
• deterministic: true
• return: string
• params:
  • value: string
  • len: number
  • pad: string

ltrim

• description: Remove leading chars
• deterministic: true
• return: string
• params:
  • value: string

replace

• description: The replace() method searches a string for a specified value and returns a new string where the specified values are replaced.
• deterministic: true
• return: string
• params:
  • value: string
  • source: string
  • target: string

rpad

• description: Pad the right-side of string
• deterministic: true
• return: string
• params:
  • value: string
  • len: number
  • pad: string

rtrim

• description: Remove trailing spaces
• deterministic: true
• return: string
• params:
  • value: string

startWith

• description: Indicates whether a text string begins with the characters of a given text string
• deterministic: true
• return: boolean
• params:
  • value: string
  • stringSearched: string
  • position: number

substr

• description: Get a substring of string
• deterministic: true
• return: string
• params:
  • value: string
  • from: number
  • count: number

substring

• description: Get a substring of string
• deterministic: true
• return: string
• params:
  • value: string
  • from: number
  • count: number

trim

• description: Remove characters
• deterministic: true
• return: string
• params:
  • value: string

upper

• description: Uppercase string
• deterministic: true
• return: string
• params:
  • value: string

concat

• description: String concatenation
• deterministic: true
• return: string
• params:
  • values: string

concatenate

• description: String concatenation
• deterministic: true
• return: string
• params:
  • values: string

capitalize

• description: Make the first character have upper case and the rest lower case
• deterministic: true
• return: string
• params:
  • value: string

test

• description: Try a match on a string. Returns true or false.
• deterministic: true
• return: boolean
• params:
  • value: any
  • regexp: string

match

• description: Returns an array containing all matches, including capturing groups, or null if no matches are found.
• deterministic: true
• return: boolean
• params:
  • value: string
  • regexp: string

mask

• description: General-purpose function that mask parts of arbitrary strings based on position within the string
• deterministic: true
• return: string
• params:
  • value: string

stringify

• description: Convert a JavaScript object or value to a JSON text string.
• deterministic: true
• return: string
• params:
  • value: any

parse

• description: Parses a text string as JSON, optionally transforming the value produced by the parse.
• deterministic: true
• return: any
• params:
  • value: string

isEmpty

• description: Evaluate if it is empty
• deterministic: true
• return: boolean
• params:
  • value: any

toString

• description: convert to string
• deterministic: true
• return: string
• params:
  • value: any