javascript - 在 bool 变量之间切换

Question

我想知道如何在两个 bool 变量之间切换。这在第一次运行代码时正常工作，但在第二次运行后输出不正确。

第一次运行switchPlayer()时输出:

player1.isActive = false,
player2.isActive = true

第二次运行switchPlayer()输出:

player1.isActive = true,
player2.isActive = true

下面是我写的代码:

var Player = function(score, isActive){
  this.score = score;
  this.isActive = isActive;
}

Player.prototype.toggleIsActive = function(){
      if(this.isActive === false){
        this.isActive = true;
      } else{
        this.isActive = false;
      }
    }

function switchPlayer(){
  if(player1.isActive === true){
    player1.toggleIsActive();
    player2.toggleIsActive();
  } else{
    player1.isActive = true;
  }
}
var player1 = new Player("0", true);
var player2 = new Player("0", false);

switchPlayer();
switchPlayer();

Answer 1

你可以这样简化:

Player.prototype.toggleIsActive = function(){
   this.isActive = !this.isActive;
}

function switchPlayer(){
    player1.toggleIsActive();
    player2.toggleIsActive();
}

ToggleIsActive 应该与以前相反。另请注意，switchPlayer 只调用了没有特定逻辑的切换。