Javascript箭头表示法函数未定义语法错误

Question

我是javascript的新手，我想学习js，这里我在控制输出时遇到语法错误

const screemwarriors = () => {
  var warriors = "Ninja";
  shootwarriors = function(){
    console.log(warriors);
  }
}
const output = screemwarriors();
console.log(output.shootwarriors());

这里我得到语法错误

Answer 1

看起来您尝试将结果作为对象访问。如果您打算以这种方式执行此操作，则必须在对象中返回该函数。

更新：清理代码

const screemwarriors = () => ({
  shootwarriors: () => {
    console.log("Ninja");
  }
});

const output = screemwarriors();
output.shootwarriors();

干杯，

Answer 2

如果您修改函数，您的调用代码将起作用：

const screemwarriors = function() {
  var warriors = 'Ninja';
  return {
    shootwarriors: function() {
      return warriors;
    }
  }
}

const output = screemwarriors();
console.log(output.shootwarriors());