concat

The concat() function concatenates (aka combines) its arguments. It accepts one or more list arguments, and outputs a single combined list.

concat(list)
concat(list, list, ...)

list.concat(list)
list.concat(list, ...)
Code language: JavaScript (javascript)

concat() can accept any number of arguments. If you give it no arguments, it’ll return an empty list.

Example Formulas

concat(
  [1, 2, 3],
  [4, 5, 6]
)

/* Output: [1, 2, 3, 4, 5, 6] */
Code language: JavaScript (javascript)

See the Latest Activity formula in Ultimate Brain for a more robust example of concat() in action.