Vue.js表单提交不起作用

Question

I want to submit the values in my form but each time I press the submit button I get the following error:

Uncaught TypeError: login is not a function
at Object.submit [as fn] (eval at Yr (vue.min.js:7), <anonymous>:2:369)
at HTMLFormElement.<anonymous> (vue.min.js:6)

In my HTML code I have my form declared as such: <form v-on:submit.prevent="login">

In the JS it looks like this:

// register
Vue.component("login-form",
{
    template: // THE HTML FORM
,
    data: function () {
        return data;
    },
    ready: function () {
        this.isAuthenticated = this.checkIfAuthenticated();
        this.userName = localStorage.getItem("id_name");
    },

    methods: {
        checkIfAuthenticated: function () {
            const users = [
                {
                    id: 1,
                    name: "tom"
                },
                {
                    id: 2,
                    name: "brian"
                },
                {
                    id: 3,
                    name: "sam"
                }
            ];

            this.$set("users", users);
        },
        login: function () {
            const headers = { "Content-Type": "application/x-www-form-urlencoded" };

            $.ajax({
                url: "/token",
                type: "post",
                data: `username=${this.login.username}&password=${this.login.password}`,
                headers: headers,
                success: function (data) {
                    console.info(data);
                },
                error: function() {
                    this.isValid = false;
                }
            });
        }
    }
});
// create a root instance
var vue = new Vue({
    el: "#loginForm"
});

As you see the login function is in my methods, so I don't see why vue is throwing the error

Edit: inluced a JSFiddle . The problem happens when you submit the form (after you click on login)

Answer 1

Looks like your instance has a conflict. There is a login property in a component and there is a login method in Vue instance. Try to use different names. Issue at vuejs github :

Both data properties and methods will be set on the instance, so the short answered is: don't use conflicting names :)