使用vue.js单击时如何获取按钮的值

我在一个页面上有几个按钮，它们连接到相同的方法webcamSendRequestButton

<button v-on:click="webcamSendRequestButton" value="0" type="button" class="webcam-send-request-button" :disabled="disabled">Verify</button>
<button v-on:click="webcamSendRequestButton" value="1" type="button" class="webcam-send-request-button" :disabled="disabled">Verify</button>
<button v-on:click="webcamSendRequestButton" value="2" type="button" class="webcam-send-request-button" :disabled="disabled">Verify</button>
<button v-on:click="webcamSendRequestButton" value="3" type="button" class="webcam-send-request-button" :disabled="disabled">Verify</button>

点击按钮时，我正在进行一个ajax调用.在jquery或JS中，当使用$(this).val();单击按钮时，获取按钮的值非常简单

在vue中单击按钮时，如何获取其值？

var app = new Vue({
    el: '#my-div',
    methods: {
        webcamSendRequestButton: function() {

            const buttonValue = ??? // How do I fetch the value over here

            $.ajax({
                url: "someurl",
                type: "POST",
                data: {
                    value: buttonValue
                },
                success: function (data) {
                    // Omitted for brevity
                }
            });
        }
    }
});