问题描述
我在 Ionic Proyect 中有此警告“订阅已弃用:使用观察者而不是完整回调”。请帮忙。
fetch(cb) {
this.loadingIndicator = true;
this.cservice.postNcRangoConta(this.body).subscribe(
res => {
try {
if (res) {
this.headers = Object.keys(res[0]);
this.columns = this.getColumns(this.headers);
this.temp = [...res];
cb(res);
this.loadingIndicator = false;
}
} catch (error) {
this.loadingIndicator = false;
this.rows = null;
this.toast.presentToast('No se encontraron datos','warning');
}
},err => {
console.log(err);
if (this.desde || this.hasta) {
this.loadingIndicator = false;
this.toast.presentToast('La API no responde','danger');
} else {
this.loadingIndicator = false;
this.toast.presentToast('Debe llenar las fechas','warning');
}
}
);
}
解决方法
subscribe 方法实际上并未被弃用,但您使用它的方式已被弃用。尝试切换到它的新语法。
// Deprecated
source.subscribe(
(res) => cb(res),error => console.error(error),() => console.log('Complete')
);
// Recommended
source.subscribe({
next: (res) => cb(res),error: error => console.error(error),complete: () => console.log('Complete')
});