js throw error
throw new Error('Whoops!')node js throw error
FactoryController.prototype.create = function (callback) {
//The throw is working, and the exception is returned.
throw new Error('An error occurred'); //outside callback
try {
this.check(function (check_result) {
callback(check_result);
});
} catch (ex) {
throw new Error(ex.toString());
}
}
FactoryController.prototype.create = function (callback) {
try {
this.check(function (check_result) {
//The throw is not working on this case to return the exception to the caller(parent)
throw new Error('An error occurred'); //inside callback
});
} catch (ex) {
throw new Error(ex.toString());
}
}javascript throw error inside then
new Promise((resolve, reject) => {
resolve("ok");
}).then((result) => {
throw new Error("Whoops!"); // rejects the promise
}).catch(alert); // Error: Whoops!Copyright © 2021 Codeinu
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