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vue模糊匹配,监听输入框内容改变

vue模糊匹配,监听输入框内容改变

<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <script src="https://cdn.jsdelivr.net/npm/vue@2.5.16/dist/vue.js"></script>
    <script src="https://cdn.jsdelivr.net/npm/axios@0.12.0/dist/axios.min.js"></script>
    <script src="https://cdn.jsdelivr.net/npm/lodash@4.13.1/lodash.min.js"></script>
</head>
<body>
<div id="el">
    <input v-model="question">
    <p>{{ answer }}</p>
</div>
</body>
<script>
    new Vue({
        el: '#el',
        //数据
        data: {
            question: '',
            answer: 'I cannot give you an answer until you ask a question!'
        },
        //方法体
        methods:
            {
                getAnswer: _.debounce(
                    function () {
                        if (this.question.indexOf('?') === -1) {
                            this.answer = 'Questions usually contain a question mark. ;-)'
                            return
                        }
                        this.answer = 'Thinking...'
                        var vm = this
                        axios.get('https://yesno.wtf/api')
                            .then(function (response) {
                                console.log(response);
                                vm.answer = response.data.image;
                            })
                            .catch(function (error) {
                                vm.answer = 'Error! Could not reach the API. ' + error
                            })
                    },
                    // 这是我们为判定用户停止输入等待的毫秒数
                    500
                )
            },
        watch: {
            // 如果 `question` 发生改变,这个函数就会运行
            question: function (newQuestion, oldQuestion) {
                this.answer = 'Waiting for you to stop typing...'
                this.getAnswer()
            }
        }
    });
</script>
</html>


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本文由:xiaoshu168 作者:xiaoshu发表,转载请注明来源!

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