datatest | Tools for test driven data-wrangling and data validation | Unit Testing library

You are calling both send(msg) and return msg

This will mean that you send 2 messages from the function node and since NodeJS/JavaScript is pass by reference they will both end up with the same content.

Best option is just to remove the return msg from the end of the function.

The href tags on that website contain newlines. One at the start and also some mid way through. As such when you try and combine root_url you are not getting valid URLs.

A fix can be to remove all the newlines. As the href always starts with a / this can also be removed from the root_url, or you could use urllib.parse.urljoin().

First I would recommend using lubridate since this involves time intervals and purrr since you are essentially needing iterate through the individual intervals to compare against the list.

Two notes based on your desired outcome. First, lubridate views intervals as inclusive of their boundaries, i.e. if two intervals share a boundary they overlap. This means, for example, 5A and 9A overlap because one starts at 00:35:00 and the other ends at 00:35:00. Second, while it's not clear from your problem description, it appears you only want to compare across the same machine. For example, it doesn't count that 4A is running at the same time as 3C.

The problem is not so much in the function returning void. Think about how it signals errors and make sure all cases (success and failures) are tested, simple as that.

However, I don't see any error signalling at all there, apart from logging it. As a rule of thumb, logging should only be used for post-mortem research and the like. So, if logging completely fails, your program can still run correctly. That means, nothing internally depends on it and it is not a suitable error handling/signalling mechanism.

Now, there are basically three ways to signal errors:

1. Return values. Typically used in C code and sometimes used in C++ as well. With void return, that's not an option, and that is probably the source of your question.
2. Exceptions. You could throw std::runtime_error("DB connect failed"); and delegate handling it to the calling code.
3. Side effects. You could store the connection state in your Database instance. For completeness, using a global errno is also possible, but not advisable.

In any case, all three ways can be exercised and verified in unit tests.

Try this?

I'm assuming you mean sequenceNumber, as per xml example, if that's the case then you may need to do something like this to return the node Contract:

you can concatenate them like this

Just update Carbon to a more recent version and you'll be fine:

I guess this Toggle.js you mean the jQuery toggle() right?

You could declare a toggle prop. So everytime you want to render either your toggleFunc or Toggle.js you just need to set true or false.