title: What is dart equivalent to kotlin's or java's collection.removeall?
body: <p>what is the equivalent of kotlin or java's <code>Collection.removeAll((elements: Collection&lt;E&gt;)</code>. i only saw that removeWhere method on dart and it does not meet my needs</p>
  <p><a href="https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.collections/-mutable-list/remove-all.html" rel="nofollow noreferrer">https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.collections/-mutable-list/remove-all.html</a></p>
  <blockquote>
  <p>abstract fun removeAll(elements: Collection): Boolean
  Removes all of this collection's elements that are also contained in the specified collection.
  Return true if any of the specified elements was removed from the collection, false if the collection was not modified.</p>
  </blockquote>