Skip to main content
Version: Next

where

Filters list elements based on a predicate.

where(xs:list, capture:field, predicate:bool) -> list

Description​

The where function keeps only elements of a list for which a predicate evaluates to true.

xs: list​

A list of values.

capture: field​

The name of each list element in each predicate.

predicate: bool​

The predicate evaluated for each list element.

Examples​

Keep only elements greater than 3​

from {
  xs: [1, 2, 3, 4, 5]
}
xs = xs.where(x, x > 3)
{xs: [4, 5]}

See Also​

map