Question

在Vue中弄湿我的脚：

JS：

predicted_output = ""

.....

@app.route("/", methods=["GET", "POST"])
def index():
......
    pred_s = str(prediction)
    m = Money(amount=pred_s, currency='EUR')

    predicted_output = str(m)
    return redirect(url_for("result"))


@app.route("/result")
def result():
    return render_template("result.html", the_final_value=predicted_output)

HTML：

<div class="text-out-main">
    {{ the_final_value }}
</div>

当我在控制台中操作时：

person = {'Firstname': "christina", 'Lastname': "hidden from stackoverflow", 'Email': "hidden from stackoverflow" ,'Phone':"hidden from stackoverflow"}
parent = {'Firstname': "galina", 'Lastname': "hidden from stackoverflow", 'Email': "hidden from stackoverflow" ,'Phone':"hidden from stackoverflow"}
def personAndParentFirstName():
   print(person, parent['Firstname'])
   for i in person.values():
       if (i == parent['Firstname']):
           return True
   return False
print("Is parent: "+str(personAndParentFirstName()))

我得到：

document.addEventListener("DOMContentLoaded", function () {

  Vue.component('coordinate-form', {
    template: `<form><input type="text" v-model:"coord"></input><input type="submit"></input></form>`
  });

  const app = new Vue({
    delimiters: ['${', '}'],
    el: '#findcoordinate',
    data: {
      coord: '000 000'
    }
  });
console.log(app.coord); -- prints 000 000 in console.

});

Answer 1

您为app事件在函数内部定义了DOMContentLoad，因此在事件外部（也在控制台中）无法访问它。您需要在窗口对象中定义app变量才能全局访问它：

const app = new Vue({
   ///...
});

window.app = app;

尝试通过控制台设置变量时未定义应用程序

1 个答案: