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This repository has been archived by the owner on Mar 29, 2020. It is now read-only.
Say you have a function primitiveMultiply that in 20 percent of cases multiplies two numbers and in the other 80 percent of cases raises an exception of type MultiplicatorUnitFailure. Write a function that wraps this clunky function and just keeps trying until a call succeeds, after which it returns the result.
Make sure you handle only the exceptions you are trying to handle.
*/
"use strict";
class MultiplicatorUnitFailure extends Error {}
function primitiveMultiply(a, b) {
if (Math.random() < 0.2) {
return a * b;
} else {
throw new MultiplicatorUnitFailure("Klunk");
}
}
function reliableMultiply(a, b) {
"use strict"; // Enable `strict mode` inside the function body
while (true) {
try {
return primitiveMultiply(a, b);
} catch (exception) {
if (!(exception instanceof MultiplicatorUnitFailure))