Reactjs 不能使用“;“进口/要求”;进入服务人员文件
我目前正在用react构建一个pwa应用程序。我现在面临一个问题。事实上,我正试图将src文件夹中的一些函数导入位于公用文件夹中的sw.js。。。但每次我尝试运行应用程序时,我都会收到以下消息: “未捕获的语法错误:意外标记*”“未捕获的语法错误: 意外标记{“…” 这很奇怪,因为它是一个基本的JS文件 以下是我的项目结构:Reactjs 不能使用“;“进口/要求”;进入服务人员文件,reactjs,Reactjs,我目前正在用react构建一个pwa应用程序。我现在面临一个问题。事实上,我正试图将src文件夹中的一些函数导入位于公用文件夹中的sw.js。。。但每次我尝试运行应用程序时,我都会收到以下消息: “未捕获的语法错误:意外标记*”“未捕获的语法错误: 意外标记{“…” 这很奇怪,因为它是一个基本的JS文件 以下是我的项目结构: - node_modules - public - assets - images (...) - favicon.icon - index
- node_modules
- public
- assets
- images
(...)
- favicon.icon
- index.html
- manifest.json
- sw.js
- src
(...)
- indexedDB
- database.js
- idb.js
(...)
这是我的database.js
import * as idb from './idb.js';
(function() {
emergencyDb = () => {
return idb.open('emergency-store', 2, upgradeDB => {
switch (upgradeDB.oldVersion) {
case 0: upgradeDB.createObjectStore('emergency', { autoIncrement : true })
}
})
};
putEmergency = (value, key) => {
console.log('val dans putEmergency', value);
console.log('key dans putEmergency', key);
return databaseLocale().emergencyDb().then(db => {
const tx = db.transaction('emergency', 'readwrite');
tx.objectStore('emergency').put(value, key);
return tx.complete;
});
};
getEmergency = (id) => {
return databaseLocale().emergencyDb().then(db => {
return db.transaction('emergency')
.objectStore('emergency').get(id);
})
};
deleteEmergency = (id) => {
return databaseLocale().emergencyDb().then(db => {
const tx = db.transaction('emergency', 'readwrite');
tx.objectStore('emergency').delete(id);
return tx.complete;
});
};
clearEmergency = () => {
return databaseLocale().emergencyDb().then(db => {
const tx = db.transaction('emergency', 'readwrite');
tx.objectStore('emergency').clear();
return tx.complete;
});
};
getAllEmergency = () => {
return databaseLocale().emergencyDb().then(db => {
return db.transaction('emergency')
.objectStore('emergency').getAllKeys().then(keys => {
return Promise.all(keys.map(id => databaseLocale().getEmergency(id).then(content => (Object.assign({}, { id }, content)))))
});
})
}
}());
还有我的idb.js
(function() {
function toArray(arr) {
return Array.prototype.slice.call(arr);
}
function promisifyRequest(request) {
return new Promise(function(resolve, reject) {
request.onsuccess = function() {
resolve(request.result);
};
request.onerror = function() {
reject(request.error);
};
});
}
function promisifyRequestCall(obj, method, args) {
var request;
var p = new Promise(function(resolve, reject) {
console.log('obj', JSON.stringify(obj));
console.log('method', method);
console.log('args', args);
request = obj[method].apply(obj, args);
promisifyRequest(request).then(resolve, reject);
});
p.request = request;
return p;
}
function promisifyCursorRequestCall(obj, method, args) {
var p = promisifyRequestCall(obj, method, args);
return p.then(function(value) {
if (!value) return;
return new Cursor(value, p.request);
});
}
function proxyProperties(ProxyClass, targetProp, properties) {
properties.forEach(function(prop) {
Object.defineProperty(ProxyClass.prototype, prop, {
get: function() {
return this[targetProp][prop];
},
set: function(val) {
this[targetProp][prop] = val;
}
});
});
}
function proxyRequestMethods(ProxyClass, targetProp, Constructor, properties) {
properties.forEach(function(prop) {
if (!(prop in Constructor.prototype)) return;
ProxyClass.prototype[prop] = function() {
console.log('this', this);
console.log('targetProp', targetProp);
console.log('prop', prop);
console.log('arguments', arguments);
return promisifyRequestCall(this[targetProp], prop, arguments);
};
});
}
function proxyMethods(ProxyClass, targetProp, Constructor, properties) {
properties.forEach(function(prop) {
if (!(prop in Constructor.prototype)) return;
ProxyClass.prototype[prop] = function() {
return this[targetProp][prop].apply(this[targetProp], arguments);
};
});
}
function proxyCursorRequestMethods(ProxyClass, targetProp, Constructor, properties) {
properties.forEach(function(prop) {
if (!(prop in Constructor.prototype)) return;
ProxyClass.prototype[prop] = function() {
return promisifyCursorRequestCall(this[targetProp], prop, arguments);
};
});
}
function Index(index) {
this._index = index;
}
proxyProperties(Index, '_index', [
'name',
'keyPath',
'multiEntry',
'unique'
]);
proxyRequestMethods(Index, '_index', IDBIndex, [
'get',
'getKey',
'getAll',
'getAllKeys',
'count'
]);
proxyCursorRequestMethods(Index, '_index', IDBIndex, [
'openCursor',
'openKeyCursor'
]);
function Cursor(cursor, request) {
this._cursor = cursor;
this._request = request;
}
proxyProperties(Cursor, '_cursor', [
'direction',
'key',
'primaryKey',
'value'
]);
proxyRequestMethods(Cursor, '_cursor', IDBCursor, [
'update',
'delete'
]);
// proxy 'next' methods
['advance', 'continue', 'continuePrimaryKey'].forEach(function(methodName) {
if (!(methodName in IDBCursor.prototype)) return;
Cursor.prototype[methodName] = function() {
var cursor = this;
var args = arguments;
return Promise.resolve().then(function() {
cursor._cursor[methodName].apply(cursor._cursor, args);
return promisifyRequest(cursor._request).then(function(value) {
if (!value) return;
return new Cursor(value, cursor._request);
});
});
};
});
function ObjectStore(store) {
this._store = store;
}
ObjectStore.prototype.createIndex = function() {
return new Index(this._store.createIndex.apply(this._store, arguments));
};
ObjectStore.prototype.index = function() {
return new Index(this._store.index.apply(this._store, arguments));
};
proxyProperties(ObjectStore, '_store', [
'name',
'keyPath',
'indexNames',
'autoIncrement'
]);
proxyRequestMethods(ObjectStore, '_store', IDBObjectStore, [
'put',
'add',
'delete',
'clear',
'get',
'getAll',
'getKey',
'getAllKeys',
'count'
]);
proxyCursorRequestMethods(ObjectStore, '_store', IDBObjectStore, [
'openCursor',
'openKeyCursor'
]);
proxyMethods(ObjectStore, '_store', IDBObjectStore, [
'deleteIndex'
]);
function Transaction(idbTransaction) {
this._tx = idbTransaction;
this.complete = new Promise(function(resolve, reject) {
idbTransaction.oncomplete = function() {
resolve();
};
idbTransaction.onerror = function() {
reject(idbTransaction.error);
};
idbTransaction.onabort = function() {
reject(idbTransaction.error);
};
});
}
Transaction.prototype.objectStore = function() {
return new ObjectStore(this._tx.objectStore.apply(this._tx, arguments));
};
proxyProperties(Transaction, '_tx', [
'objectStoreNames',
'mode'
]);
proxyMethods(Transaction, '_tx', IDBTransaction, [
'abort'
]);
function UpgradeDB(db, oldVersion, transaction) {
this._db = db;
this.oldVersion = oldVersion;
this.transaction = new Transaction(transaction);
}
UpgradeDB.prototype.createObjectStore = function() {
return new ObjectStore(this._db.createObjectStore.apply(this._db, arguments));
};
proxyProperties(UpgradeDB, '_db', [
'name',
'version',
'objectStoreNames'
]);
proxyMethods(UpgradeDB, '_db', IDBDatabase, [
'deleteObjectStore',
'close'
]);
function DB(db) {
this._db = db;
}
DB.prototype.transaction = function() {
return new Transaction(this._db.transaction.apply(this._db, arguments));
};
proxyProperties(DB, '_db', [
'name',
'version',
'objectStoreNames'
]);
proxyMethods(DB, '_db', IDBDatabase, [
'close'
]);
// Add cursor iterators
// TODO: remove this once browsers do the right thing with promises
['openCursor', 'openKeyCursor'].forEach(function(funcName) {
[ObjectStore, Index].forEach(function(Constructor) {
Constructor.prototype[funcName.replace('open', 'iterate')] = function() {
var args = toArray(arguments);
var callback = args[args.length - 1];
var nativeObject = this._store || this._index;
var request = nativeObject[funcName].apply(nativeObject, args.slice(0, -1));
request.onsuccess = function() {
callback(request.result);
};
};
});
});
// polyfill getAll
[Index, ObjectStore].forEach(function(Constructor) {
if (Constructor.prototype.getAll) return;
Constructor.prototype.getAll = function(query, count) {
var instance = this;
var items = [];
return new Promise(function(resolve) {
instance.iterateCursor(query, function(cursor) {
if (!cursor) {
resolve(items);
return;
}
items.push(cursor.value);
// Modification ici
// if (count !== undefined && items.length == count) {
if (count !== undefined && items.length === count) {
resolve(items);
return;
}
cursor.continue();
});
});
};
});
var exp = {
open: function(name, version, upgradeCallback) {
var p = promisifyRequestCall(indexedDB, 'open', [name, version]);
var request = p.request;
request.onupgradeneeded = function(event) {
if (upgradeCallback) {
upgradeCallback(new UpgradeDB(request.result, event.oldVersion, request.transaction));
}
};
return p.then(function(db) {
return new DB(db);
});
},
delete: function(name) {
return promisifyRequestCall(indexedDB, 'deleteDatabase', [name]);
}
};
if (typeof module !== 'undefined') {
module.exports = exp;
module.exports.default = module.exports;
}
else {
this.idb = exp;
}
}());
最后是我的sw.js
// import * as idb from './assets/indexedDB/idb.js'; < -- BUG HERE CANNOT IMPORT THE FILE
const BASE_URL_BACKEND = 'http://localhost:8080';
const cacheName ='emmergency-1.0';
self.addEventListener('install', evt => {
console.log(`SW installé à ${new Date().toLocaleTimeString()}`);
let cachePromise = caches.open(cacheName).then(cache =>{
return cache.addAll([
'/'
])
.then(console.log("Cache initialisé"))
.catch(console.err);
});
evt.waitUntil(cachePromise);
});
// Supprimer les anciennes versions du cache
self.addEventListener('activate', evt => {
console.log('Activate evt', evt);
let cacheCleanedPromise = caches.keys().then(keys => {
keys.forEach(key => {
if(key != cacheName){
return caches.delete(key);
}
})
});
evt.waitUntil(cacheCleanedPromise)
});
self.addEventListener('fetch', evt => {
// if(!navigator.onLine){
// const headers = { headers : {'Content-Type': 'text/html;charset=utf-8'}};
// evt.respondWith(new Response('<h1>Pas de connexion internet</h1>', headers));
// }
// // Stratégie de cache only with network fallback
// evt.respondWith(
// caches.match(evt.request).then(res => {
// if(res){
// console.log(`Url fetchée depuis le cache ${evt.request.url}`, res);
// return res;
// }
// return fetch(evt.request).then(newResponse => {
// console.log(`Url récrupérée sur le réseau puis mise en cache ${evt.request.url}`, newResponse);
// caches.open(cacheName).then(cache => cache.put(evt.request, newResponse))
// return newResponse.clone();
// })
// })
// );
// Stratégie de network first with cache fallback
// evt.respondWith(
// fetch(evt.request).then(res => {
// console.log(`${evt.request.url} fetchée depuis le réseau`);
// caches.open(cacheName).then(cache => cache.put(evt.request, res));
// return res.clone();
// }).catch(err => {
// console.log(`${evt.request.url} fetchée depuis le cache`);
// return caches.match(evt.request);
// })
// );
});
// // Notification persistante - Peut être affiché même quand l'utilisateur n'est pas sur l'application
// self.registration.showNotification("Notification depuis le SW", {
// body : 'Je suis un notification "persistante"',
// actions : [
// {action : 'accept', title: 'Accepter'},
// {action : 'refuse', title: 'Refuser'}
// ]
// })
// self.addEventListener('notificationclose', evt => {
// console.log('Notification fermée', evt);
// })
// self.addEventListener('notificationclick', evt => {
// if(evt.action === 'accept'){
// console.log('Notification acceptée');
// }
// else if(evt.action === 'refuse'){
// console.log('Notification refusée');
// }
// else{
// console.log('Vous avez cliqué sur la notification (Pas sur les boutons)');
// }
// evt.notification.close();
// })
self.addEventListener('push', evt => {
console.log('Push event', evt);
console.log('Data envoyée par la push notification des dev tools : ', evt.data.text());
const title = evt.data.text();
evt.waitUntil(
self.registration.showNotification(title,
{
body: 'Ca fonctionne',
image: 'images/icons/icon-152x152.png'
}
));
})
self.addEventListener('sync', event => {
if(event.tag === 'sync-emergencies'){
console.log('Attemting to sync', event.tag);
event.waitUntil(
getAllEmergency().then(emergencies => {
const unsynced = emergencies.filter(emergency => emergency.unsynced);
console.log("UNSYNCED =", unsynced);
return Promise.all(unsynced.map(emergency => {
fetch(`${BASE_URL_BACKEND}/api/calls`, {
headers : {
'Accept': 'application/json',
'Content-Type' : 'application/json'
},
method: 'POST',
body: JSON.stringify(emergency)
})
.then(() => {
return putEmergency(Object.assign({}, emergency, { unsynced: false}), emergency.id);
});
}))
})
)
}
});
//从'./assets/indexedDB/idb.js'以idb形式导入*文件;<--此处的BUG无法导入该文件
const BASE\u URL\u BACKEND=http://localhost:8080';
常量cacheName='emmergency-1.0';
self.addEventListener('install',evt=>{
log(`SW installéa${new Date().toLocaleTimeString()}`);
让cachePromise=caches.open(cacheName)。然后(cache=>{
返回cache.addAll([
'/'
])
.then(console.log(“Cache initialisé”))
.catch(console.err);
});
evt.Waitill(承诺);
});
//供应器旧版本缓存
self.addEventListener('activate',evt=>{
console.log('Activate evt',evt');
让cacheCleanedPromise=caches.keys()。然后(keys=>{
keys.forEach(key=>{
if(key!=cacheName){
返回缓存。删除(键);
}
})
});
evt.Waitill(cacheCleanedPromise)
});
self.addEventListener('fetch',evt=>{
//如果(!navigator.onLine){
//const headers={headers:{'Content-Type':'text/html;charset=utf-8'};
//evt.respondWith(新响应(“连接互联网的Pas”,标题));
// }
////仅使用网络回退的Stratégie de cache
//evt.响应(
//caches.match(evt.request)。然后(res=>{
//如果(res){
//log(`Url fetchée depuis le cache${evt.request.Url}`,res);
//返回res;
// }
//返回fetch(evt.request)。然后(newResponse=>{
//log(`Url récrupérée sure le réseau puis mise en cache${evt.request.Url}`,newResponse);
//caches.open(cacheName).then(cache=>cache.put(evt.request,newResponse))
//返回newResponse.clone();
// })
// })
// );
//Stratégie de network first与缓存回退
//evt.响应(
//获取(evt.request)。然后(res=>{
//log(${evt.request.url}fetchée depuis le réseau`);
//open(cacheName).then(cache=>cache.put(evt.request,res));
//返回res.clone();
//})。捕获(错误=>{
//log(`${evt.request.url}fetchée depuis le cache`);
//返回caches.match(evt.request);
// })
// );
});
////持续通知-在申请后的一段时间内
//self.registration.showNotification(“通知depuis le SW”{
//正文:“联合国关于“持久性”的通知”,
//行动:[
//{操作:'accept',标题:'Accepter'},
//{动作:'拒绝',标题:'拒绝'}
// ]
// })
//self.addEventListener('notificationclose',evt=>{
//日志('Notification fermée',evt);
// })
//self.addEventListener('notificationclick',evt=>{
//如果(evt.action=='accept'){
//log('Notification acceptée');
// }
//else if(evt.action===‘拒绝’){
//console.log(“通知拒绝”);
// }
//否则{
//console.log(“您在通知上的地址(在布顿附近的地址)”;
// }
//evt.notification.close();
// })
self.addEventListener('push',evt=>{
日志('推送事件',evt);
控制台。日志(“数据特使,推送通知DES DEV工具:”,EVT.DATA,文本());
const title=evt.data.text();
等待(
自我注册。展示通知(标题,
{
正文:“Ca fonctionne”,
图片:“images/icons/icon-152x152.png”
}
));
})
self.addEventListener('sync',event=>{
如果(event.tag===“同步紧急情况”){
log('Attemting to sync',event.tag);
event.waitill(
getAllEmergency()。然后(紧急情况=>{
const unsynced=emergencies.filter(emergency=>emergency.unsynced);
console.log(“UNSYNCED=”,UNSYNCED);
返回Promise.all(unsynced.map)(紧急情况=>{
fetch(${BASE\u URL\u BACKEND}/api/calls`{
标题:{
“接受”:“应用程序/json”,
“内容类型”:“应用程序/json”
},
方法:“POST”,
正文:JSON.stringify(紧急)
})
.然后(()=>{
返回putEmergency(Object.assign({},emergency,{unsynced:false}),emergency.id);
});
}))
})
)
}
});
我绝对需要一些功能从“database.js”到我的“sw.js”文件…但我无法导入它…请提供任何帮助
谢谢你生活没有回报你需要添加它 idb.js
(function() {
//......
return {
exp
}
}());
iLife
没有返回。您需要添加它
idb.js
(function() {
//......
return {
exp
}
}());
在哪个文件中?我不确定修改是否能解决问题…我无法将外部js文件导入到sw.js…我甚至无法使用“从axios导入axios”;“从node_模块导入模块”在我的sw.js中…这不起作用。你无法在哪个文件中导入它?我不确定修改是否能解决问题…我无法将外部js文件导入到sw.js中…我甚至无法im