to stall your car
no, stalling only makes your car stop for a brief moment when shifting geers to fast or not using the clutch correctly
Generally speaking, a stoppage of gasoline to one of its engine cylinders will cause a car to seem like it's stalling.
so that the driver of a manual car can change gear without stalling
To prevent the car from stalling
I do not do anything. You need to have a tune up done on your car.
if you do have gas in the car then it could be the idle control valve. it stops the engine from stalling when the car is stationary
Check your idle, your idle might be too low so it is stalling your car.
Well I am assuming that you car has a manual transmission, and it is stalling because you are not pushing in the clutch when you come to a stop. The more likely reason is because your idle is set to low on your car. Your most likely culprit is the carburetor. However if you car is fuel injection I would take it into a mechanic and get their opinion.
Need to know year and type of car including what motor please.
Weak battery or starter.
It's probably stalling, get your car looked at by a professional.