如何将request.var值获取给控制器？

Question

我正在尝试在js中使用一个函数（尽管对js并不完全熟悉）以从js到控制器获取值。目前，我的回复是空白消息。我如何用这段代码完成它？ 控制器： 回复= request.vars

// install user input textfield
  this.typeInput = function(callbackFn) {
    var inputWrap = document.createElement("div id='myMessage'")
    inputWrap.className = "input-wrap"
    var inputText = document.createElement("textarea")
    inputText.setAttribute("placeholder", "Ask me anything...")
    inputWrap.appendChild(inputText)
    var input = document.getElementById("myMessage");
    alert(input);
    inputText.addEventListener("keypress", function(e) {
      // register user input
      if (e.keyCode == 13) {
        e.preventDefault()
        typeof bubbleQueue !== false ? clearTimeout(bubbleQueue) : false // allow user to interrupt the bot
        var lastBubble = document.querySelectorAll(".bubble.say")
        lastBubble = lastBubble[lastBubble.length - 1]
        lastBubble.classList.contains("reply") &&
        !lastBubble.classList.contains("reply-freeform")
          ? lastBubble.classList.add("bubble-hidden")
          : false
        addBubble(
          '<span class="bubble-button bubble-pick">' + this.value + "</span>",
          function() {},
          "reply reply-freeform"
        )
        // callback
        typeof callbackFn === "function"
          ? callbackFn({
              input: this.value,
              convo: _convo,
              standingAnswer: standingAnswer
            })
          : false
        this.value = ""
      }
    })
    container.appendChild(inputWrap)
    bubbleWrap.style.paddingBottom = "100px"
    inputText.focus()
  }
  inputCallbackFn ? this.typeInput(inputCallbackFn) : false