Determines whether an array or string contains a given value

Parameters

haystack Array,String (required) - The array of values or string to check

needle String (required) - The value to look for

fromIndex Number (required) - The starting index to use

Returns

Boolean - true if the value is found

Examples

CONTAINS("abcd", "a")

// returns true

CONTAINS(['a', 'b', 'c', 'd'], 'b')

// returns true

CONTAINS("abcd", "e")

// returns false