Advertisements I have the code below and I expect to first have hi in my console then the error and at the end why, but the result is: hi, then why and the last one is error, so I’m wondering, why is this happening? code: const test = new Promise((resolve, reject) => { console.log("hi"); throw… Read More why promise has a weird precedence for errors in js?

Advertisements I noticed this behavior while playing with trap and with catch/throw methods to better understand how they can/should be used. In Ruby the catch and throw methods appear to be intended to be used in pairs: catch(:ctrl_c) do trap("SIGINT") { throw :ctrl_c } (1.. ).each {|n| print "."; sleep 0.5 } end # SIGINT… Read More Is this expected behavior for throw in ruby?

Advertisements i have to complete the getInt method. The method should prompt the user to enter an integer. Scan the input the user types. If the input is not an int, throw an Exception; otherwise, return the int. currently if you enter an int it doesnt print, and if u dotn enter an int it… Read More User input int x, if not int throw exception, if int then output x

Advertisements I tried googling it but all results were about C++’s throw std::exception(). I was reading through libraries (was curious how stuff like printf, malloc and FILE were implemented) and came across the definition for the malloc function: extern void *malloc (size_t __size) __THROW __attribute_malloc__ __attribute_alloc_size__ ((1)) __wur; When using the IDE (Visual Studio Code)… Read More What does the throw keyword mean in C

Advertisements I need to perform some action inside a catch block then throw the same exception I got: #include <string> #include <iostream> class AbstractError { public: virtual std::string toString() const = 0; }; class SomeConcreteError : public AbstractError { public: std::string toString() const { return "division bt 0"; } }; class SomeOtherError : public AbstractError… Read More How to re-throw an abstract class error from a catch block