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Summary
I interviewed for an SMTS Frontend role at Thoughtspot. I successfully solved a coding question involving the design of a Store class, but despite my solution passing all test cases, I was ultimately rejected, which I found puzzling given the interviewer's apparent disinterest.
Full Experience
I recently interviewed at Thoughtspot SMTS position.
I felt things went really smooth.
i was also able to solve a question that was given in really less time.
but i got rejected.
here is a question i was asked.
const userStore = new Store();
userStore.save("user_id_1", "samuel jackson");
const unsubscribe1 = userStore.subscribe(
"user_id_1",
(value) => {
console.log("first", value);
}, // update function
() => {
console.log("cleanup1");
} // cleanup function
);
userStore.save("user_id_1", "samuel l jackson"); //all the updaters should get called corresponding to “user_id_1”
unsubscribe1(); //should remove the update function
I was asked to design a Store class from scratch. The class needed to support three main operations:
Subscribe – This method takes a key, an update function and a cleanup function. Also, the subscribe method should return a cleanup function that can remove that specific update function when it’s no longer needed.
Save – This takes a key and a value. When a value is saved, it should notify all the update functions subscribed to that key.
Remove – This should simply remove the key from the internal cache.
But i got rejected. Something doesnt feel right.
Is my solution wrong?
I agree there could be some optimisations.
but he could have asked me to optimise, but he dint utter a word.
he also seemed very disinterested in the interview from the beginning.
Really a very bad experience.
Interview Questions (1)
I was asked to design a Store class from scratch. The class needed to support three main operations:
Subscribe – This method takes a key, an update function and a cleanup function. Also, the subscribe method should return a cleanup function that can remove that specific update function when it’s no longer needed.
Save – This takes a key and a value. When a value is saved, it should notify all the update functions subscribed to that key.
Remove – This should simply remove the key from the internal cache.
Example usage:
const userStore = new Store();
userStore.save("user_id_1", "samuel jackson");
const unsubscribe1 = userStore.subscribe(
"user_id_1",
(value) => {
console.log("first", value);
}, // update function
() => {
console.log("cleanup1");
} // cleanup function
);
userStore.save("user_id_1", "samuel l jackson"); //all the updaters should get called corresponding to “user_id_1”
unsubscribe1(); //should remove the update function