Adding a `contains` function to be used in expressions
Current situation
Expressions cannot be used to check if a list or dictionary contains a given item. We do have a ~=
operator that allows for regex matches, but there is no way to check if, say, a variable is defined.
Desired outcome
A way to check if an item is contained in a collection, and a way to produce collections, too.
contains
contains( search, item )
Returns true
if search
contains item
. If search
is an array or object, this function returns true
if the item is an element in the array or a key of the object. If search
is a string, this function returns true if the item is a substring of search
. This function is not case sensitive. Casts values to a string.
toJSON
toJSON(value)
Returns a pretty-print JSON representation of value. You can use this function to debug the information provided in contexts.
fromJSON
fromJSON(value)
Returns a JSON object or JSON data type for value. You can use this function to provide a JSON object as an evaluated expression or to convert environment variables from a string.
startsWith
startsWith( searchString, searchValue )
Returns true
when searchString
starts with searchValue
. This function is not
case-sensitive. Casts values to a string.
endsWith
endsWith( searchString, searchValue )
Returns true if searchString
ends with searchValue
. This function is not case-sensitive.
Casts values to a string.