try except
try:
print("I will try to print this line of code")
except:
print("I will print this line of code if an error is encountered")
else:
print("I will print this line of code if there's no error encountered")
finally:
print("I will print this line of code even if there's an error or no error encountered")try catch exception
First try block try to handle it
if not then catch block will handle it.
Finally block will executed regardless
of the outcometry catch
async function promHandler<T>(
prom: Promise<T>
): Promise<[T | null, any]> {
try {
return [await prom, null];
} catch (error) {
return [null, error];
}
}try catch error
// Main program passes in two ints, checks for errors / invalid input
// using template class type T for all variables within functions
#include <iostream>
using namespace std;
template <class T> // make function return type template (T)
void getMin(T val1, T val2)
{
try
{
if (val1 < val2) // if val1 less than return it as min
cout << val1 << " is the minimumn";
else if (val1 > val2)
cout << val2 << " is the minimumn";
else
throw 505; // exception error processing when input is invalid
}
catch(T my_ERROR_NUM)
{
cout << "Input is invalid, try again. "; // first part of error message
}
}
template <class T>
void getMax(T val1, T val2) // make function return type template (T)
{
try
{
if (val1 > val2) // if val1 greater then return it as max
cout << val1 << " is the maximumnn";
else if (val1 < val2)
cout << val2 << " is the maximumnn";
else
throw 505; // exception error processing when input is invalid
}
catch (T random_num)
{
cout << "Error 505!nn"; // Second part of error messagee
}
}python: raise error
class MyError(TypeError):
pass
raise MyError('An error happened')Copyright © 2021 Codeinu
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