这是我的Javascript代码。只需从firebase文档中复制
<script src="https://www.gstatic.com/firebasejs/5.4.2/firebase.js"/></script>
<script src="https://www.gstatic.com/firebasejs/5.3.0/firebase-firestore.js"></script>
<script>
// Initialize Firebase
var config = {
apiKey: ".",
authDomain: ".",
databaseURL: ".",
projectId: ".",
storageBucket: ".",
messagingSenderId: ".[enter image description here][1]"
};
firebase.initializeApp(config);
// Initialize Cloud Firestore through Firebase
var db = firebase.firestore();
function submitCountry(){
console.log('in funtion');
db.collection("cities").doc("asdasLA").set({
name: "Los Angeles",
state: "CasdasA",
stasdaate: "CasdasdasA",
stasaasddaate: "CAasd",
country: "USA"
})
.then(function() {
console.log("Document successfully written!");
})
.catch(function(error) {
console.error("Error writing document: ", error);
});
}
</script>
当我刷新页面时,它会显示未捕获的错误。
{代码:“应用程序/重复服务”,消息:“ Firebase:Firebase服务 已注册的名为“ firestore”(应用程序/复制服务)。”,名称: “ firestore”,堆栈:“ firestore:Firebase:名为Firebase的服务 'fires…m / firebasejs / 5.3.0 / firebase-firestore.js:1:326255“} firebase @ index.esm.js:17591(匿名)@ index.esm.js:41 index.esm.js:17591
未捕获的错误:无法实例化firebase-firestore-请确保 首先加载firebase-app.js。
在单击我的保存按钮后,它显示以下错误。
当我在没有任何JS或Bootstrap的简单项目上使用相同的代码时,它可以正常工作,但与我在带有Bootstrap的真实项目中放置的代码相同,则会显示错误
[干预]检测到慢速网络。请参阅以获取更多详细信息。 后备字体将在加载时使用:
答案 0 :(得分:0)
这样做
<script src="https://www.gstatic.com/firebasejs/5.4.2/firebase.js"/></script>
<script src="https://www.gstatic.com/firebasejs/5.3.0/firebase-firestore.js"></script>
您两次加载“ firestore” Firebase服务,请参阅文档:https://firebase.google.com/docs/web/setup
您应该这样做
<script src="https://www.gstatic.com/firebasejs/5.4.2/firebase.js"></script>
或
<!-- Firebase App is always required and must be first -->
<script src="https://www.gstatic.com/firebasejs/5.4.2/firebase-app.js"></script>
<!-- Add additional services that you want to use -->
<script src="https://www.gstatic.com/firebasejs/5.4.2/firebase-firestore.js"></script>
还要注意,您的代码中混合使用了多种版本(即5.4.2和5.3.0)。很有可能要避免。
在下面的注释中,为了检查其是否正确写入了数据库,请按如下所示修改您的代码,然后打开HTML页面(set()
方法将自动触发)
<script src="https://www.gstatic.com/firebasejs/5.4.2/firebase-app.js"></script>
<script src="https://www.gstatic.com/firebasejs/5.4.2/firebase-firestore.js"></script>
<script>
// Initialize Firebase
var config = {
apiKey: ".",
authDomain: ".",
databaseURL: ".",
projectId: ".",
storageBucket: ".",
messagingSenderId: ".[enter image description here][1]"
};
firebase.initializeApp(config);
// Initialize Cloud Firestore through Firebase
var db = firebase.firestore();
db.collection("cities").doc("asdasLA").set({
name: "Los Angeles",
state: "CasdasA",
stasdaate: "CasdasdasA",
stasaasddaate: "CAasd",
country: "USA"
})
.then(function() {
console.log("Document successfully written!");
})
.catch(function(error) {
console.error("Error writing document: ", error);
});
}
</script>