problem:
vuex encountered an exception during conversion after successfully obtaining the background data:
Uncaught (in promise) TypeError: Cannot read property "docInfo" of undefined
but how to catch such global exceptions?
made the following attempts, but could not catch the exception:
//
const errorHandler = (error, vm)=>{
console.error("");
console.error(vm);
console.error(error);
}
Vue.config.errorHandler = errorHandler;
Vue.prototype.$throw = function (error) {
return errorHandler(error, this);
};
// window error
window.onerror = (msg, url, line, col, error) => {
console.log("window.onerror")
return true // errorerror
}
// promise rejecttion promise
window.addEventListener("unhandledrejection", e => {
console.log("unhandledrejection")
return true
})
const root = document.createElement("div")
document.body.appendChild(root)
new Vue({
router,
store,
i18n,
render: h => h(App)
}).$mount(root)errorCaptured mode has also been tried, but the exception still cannot be caught