method Set.insert

True when x is in the set.

Example:

fn main() io {
  var s = Set<i32>.new()
  s.insert(5)
  print("{s.contains(5)} {s.contains(6)}")
}

true false

Removes x; returns false when it was not in the set.

Example:

fn main() io {
  var s = Set<i32>.new()
  s.insert(1)
  print("{s.remove(1)} {s.remove(1)}")
}

true false

Adds x; returns false when it was already in the set.

Example:

fn main() io {
  var s = Set<i32>.new()
  print("{s.insert(1)} {s.insert(1)}")
}

true false

pub(api) var fn insert(x: T) -> bool

Since. 1.0.0-beta

Parameters

Returns

bool

Effects

none declared (pure unless the body says otherwise)

Defined in: std/core/collections.oxl:1045