Tips for handling a promise that has not been fulfilled

Is there a way to return a promise and trigger its failure block right away? Check out this unconventional method:

if (fail) {
    var q = $q.deferred();

    $timeout(function() {
        q.reject("")
    }, 1);

    return q.promise;
} else {
  return $http.get("/").then(function(data) {});
}

Answer №1

if( fail ) {
    return $q.reject(yourReasonObject);
}
else ...

Check out more information here :)

Answer №2

const likeProduct = (productId) => {
    return new Promise((resolve, reject) => {
        if(!productId) throw new Error();
        jQuery.ajax({
            success: function(response) {
                resolve(response);
            }
        })
    })
}

likeProduct(id).then(() => {

   // Render the product

}).catch((error) => {
    console.log("An error occurred:", error)
})

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