takeLeftWhile<T> function

ImmutableList<T> Function(ImmutableList<T>) takeLeftWhile<T>(
  1. Predicate<T> predicate
)

Returns a function that takes an ImmutableList<T> and returns a new ImmutableList<T> containing elements from the start of the list as long as they satisfy the given predicate.

The returned function can be used to process lists and take elements from the start as long as they match the given condition.

Usage:

var myList = ImmutableList([1, 2, 3, 4, 5]);
var takeWhileLessThanFour = takeLeftWhile<int>((item) => item < 4);
var newList = takeWhileLessThanFour(myList); // Returns ImmutableList([1, 2, 3])
  • Parameter predicate: The condition used to test each element.
  • Returns: A function that processes an ImmutableList<T> and returns an ImmutableList<T> containing elements from the start as long as they satisfy the given predicate.

Implementation

ImmutableList<T> Function(ImmutableList<T>) takeLeftWhile<T>(
        Predicate<T> predicate) =>
    (ImmutableList<T> list) =>
        ImmutableList(list.items.takeWhile(predicate).toList());