contains

Tells whether text contains text, a list contains an item, or a record has a key.

Details #

contains(haystack, needle) takes exactly two arguments and returns true or false.

Text: true when the needle appears anywhere in it. Case-sensitive.
List: true when any item equals the needle, using the same loose equality as ==: 2 equals "2", texts compare exactly, lists and records compare deeply.
Record: true when the needle (as text) is one of its keys.

Takes 2 arguments. {{ contains(text, b) }}

contains("Hello world", "world")

→ true

contains(tags, "urgent")

→ true

Sample variable	Value
`tags`	`["home", "urgent"]`

contains(nums, "2")

→ true

Sample variable	Value
`nums`	`[1, 2, 3]`

contains(rec, "b")

→ true

Sample variable	Value
`rec`	`{"a": 1, "b": 2}`

Text matching is case-sensitive. Compare lower(a) with a lowercase needle for a case-insensitive test.