我是Angular的新手,实际上是在尝试通过参数中的管道回调来定义函数。
该函数正在工作,但会引发错误:
错误TS2345:类型'Subscription'的参数不能分配给'功能'类型的参数。类型'Subscription'缺少类型'Function'的以下属性:应用,调用,绑定,原型以及另外5个。
这是我的函数定义:
checkNetworkThenExecute(callback: Function) {
Network.getStatus().then((status) => {
if (status.connected) {
callback();
} else {
if (this.networkHandler == null) {
this.networkHandler = Network.addListener(
"networkStatusChange",
(status) => {
if (status.connected) {
this.networkHandler.remove();
callback();
}
}
);
}
alert("Merci de vous connecter à un réseau.");
}
});
}
searchWord(query: string) {
const url = "https://api.mapbox.com/geocoding/v5/mapbox.places/";
return this.http
.get(
url +
query +
".json?types=address&access_token=" +
environment.mapbox.accessToken
)
.pipe(
map((res: MapboxOutput) => {
return res.features;
})
);
}
而且我这样称呼这个功能:
this.mapboxService.checkNetworkThenExecute(
this.mapboxService
.searchWord(searchTerm)
.subscribe((features: Feature[]) => {
this.addresses = features.map((feat) => feat.place_name);
console.log(this.addresses);
})
);
我在做什么错了?
感谢您的帮助。
尝试一下:
this.mapboxService.checkNetworkThenExecute( () => {
this.mapboxService
.searchWord(searchTerm)
.subscribe((features: Feature[]) => {
this.addresses = features.map((feat) => feat.place_name);
console.log(this.addresses);
});
}
);
P.S .:别忘了unsubscribe