Question

我在Ruby中有一段代码我希望将其转换为Javascript但我对这个过程并不太熟悉，因为我还在学习。任何人都可以翻译这个例子，这对我的学习很有帮助，谢谢！

    class TestFunky < MiniTest::Test
  def setup
    @funky = Funky.new
  end

  def test_adds_when_you_input_a_plus_5_6_plus
    assert_equal 11, @funky.push(5).push(6).push(:+)
  end

  def test_adds_when_you_input_a_plus_6_6_plus
    assert_equal 12, @funky.push(6).push(6).push(:+)
  end

和另一个

class NumberArray < Array
  def sum_or_multiply(operator)
    self.inject(operator)
  end

  def push(number)
    raise TypeError unless number.is_a? (Numeric)
    super
  end
end

class Funky

  def initialize
    @numbers = NumberArray.new
  end

  def push(something)
    if operator?(something)
      process_operator(something)
    else
      store(something)
      self
    end
  end

Answer 1

以下是我认为您正在寻找的内容的粗略概念。

这些类定义基于Coffeescript implementation of classes和Mozilla guide on Object-Oriented Javascript

TestFunky = (function(_super) {
  function TestFunky() {
  }

  TestFunky.prototype = Object.create(_super.prototype);
  TestFunky.prototype.constructor = TestFunky;

  TestFunky.prototype.setup = function() {
    this.funky = new Funky();
  };

  TestFunky.prototype.testAddsWhenYouInputAPlus56Plus = function() {
    assert.equal(11, this.funky.push(5).push(6).push('+'));
  };

  TestFunky.prototype.testAddsWhenYouInputAPlus66Plus = function() {
    assert.equal(12, this.funky.push(6).push(6).push('+'));
  };

  return TestFunky;
})(MiniTest);

NumberArray = (function(_super) {
  function NumberArray() {
  }

  NumberArray.prototype = Object.create(_super.prototype);
  NumberArray.prototype.constructor = NumberArray;

  NumberArray.prototype.sumOrMultiply = function(operator) {
    this.inject(operator);
  };

  NumberArray.prototype.push = function(number) {
    if (typeof number !== 'number') {
      throw new Error();
    }
    _super.prototype.push.apply(this, arguments);
  };

  return NumberArray;
})(Array);

Funky = (function() {
  function Funky() {
    this.numbers = new NumberArray();
  }

  Funky.prototype.push = function(something) {
    if (this.operator(something)) {
      return this.processOperator(something);
    } else {
      this.store(something);
      return this;
    }
  };

  return Funky;
})();

一旦定义了这些，就像这样实例化它们

var funkyInstance = new Funky()

如何将代码从Ruby转换为Javascript

1 个答案: