I thought the point of objects was to combine data and code together, but that’s 1999’s DeVry thinking and may not be valid anymore.

the point of objects is an associative array collection

Is it bad design to implement a for loop that checks for a condition and then does something and returns out of the loop as soon as the condition is found?

A person on my team said generally speaking it is bad design and to just use something like lodash filter, but this function is more specifically tailored to my needs and is basically just a cheaper implementation of filter.

Definitely be skeptical of the following. I am going to guess that loadash filter is some library method where you call with an input and the output is something the code processes. Setting up the input for the call and using the output will require some changes to your code. Think about someone at a later date in maintenance mode, maybe you in 6 months +, will have an easier time dealing with/reading. Guessing the lodash filter will be easier to understand.

Yea that's a fair point, and it might be a bit easier.

I'm still learning a lot everyday (obv) and it's not always obvious to me about the "optimal" implementation for some stuff and I feel like sometimes I end up using methods from libraries where it seems like overkill, but I can see why overall it's good to have design standards and ways you do things consistently in a project, ideally org-wide but that's probably beyond most companies.

I don't javascript but I'm assuming all this lodash business is their map/filter/reduce iterator type of thing that all languages have these days.

Saying that it's a slightly more optimal/more readable/conforms to company standards better is all great and , but saying in an absolute sense Larry's solution is objectively "bad design" seems wrong and bothers me.

Agree 100% with this. With that said, it's important to follow standards and the ability to follow coding standards accurately (even if not formally documented) is an important skill.

you're immutable objects can look identical to your mutable ones, but mutator methods will return copies of the object rather than mutating it in place.

Array prototype filter? Find? I haven't written a js for loop in years. Also, **** lodash.

Lodash filter wtf are you guys even going on about. Just exit from your loop early ffs. End old man rant

Lodash is maybe the most useful js library there is. You don't know what you're missing.It's a lot more than just filter, map, reduce.

Does someone who knows about Java land mind pointing me in the right direction for build configuration management and deployment please? Using intellij and deploying to Google Cloud. Thanks!

You know what they say... premature optimization is the root of all evil. I am not a fan of for loops because they almost encourage you to be "clever" and do everything in as few for loops as possible. Efficient? Sure. Maintenance nightmare? Absolutely! For loops read like a story that is written out of order where as filter, map, reduce, etc reads more like a regular old story.

The only real use case for me with for loops is exiting early in huge data sets. I don't think most people will really ever encounter that so for loops should really be avoided for the most part. imo.

In lodash, here is an example of something short, clean, and simple that would probably take you 10 lines in regular old js.

What this does is iterates through myArray (which is an array of objects), grabs the property called myKey, and returns an object with only that key in it. What if you really just want to grab a single key and return it?

Does this do the same thing?

myArray.map(myObj => myObj.myKey);

anybody insisting you use native js would insist at the very least you wrap it in a

What if you want to return multiple keys? Now you need to construct a new object, assign all the properties to the new object. The lodash solution is one line (or maybe a wrapped line) no matter how many properties you are returning. The native js solution grows at an exponential rate.

While I'm asking for help: I want to use Pinnacle's REST API from an application, but they blacklist US IPs. My cloud server is located in Australia, as am I, but for some reason it resolves as a US IP. Any ideas on workarounds? Are there proxy services I can buy to solve this problem? Accessing the API doesn't require an SSL connection or anything fancy like that, you just put credentials in a header, so it's totally stateless.

Good post and I think that it illustrates that code efficiency is often incompatible with easy to maintain code.

You didn't say multiple keys, you said one key. Defensively coding for things you think you might need is the road to hell imo.

How would you even map an array of objects to multiple properties of that object? Are you going to return a new generic object with that # of props? A lot of questions you need to figure out before you decide on how to do it.

And I've almost never used hasOwnProperty in my career. Whenever I see an example that uses that I back up and check my approach to the problem. It just smells bad to me. Same with trying to map an array of objects to some collections that picks multiple properties out of that object. At that point I would almost always back up and look for a cleaner way.

um no one cares about hasownproperty in arrays. And barely in objects. You're writing some bizzaroland JS imo. Lodash does have its uses (_.shuffle, _.uniq) but can be avoided with clean es5/6 array methods like 80-90% of its time.

In my embedded software class, there’s no tests, but we’re going to build and program a small computer from basically the breadboard up. I’m really bad at soldering wires and stuff but it sounds super fun.

computational geometry course is actually a mixed graduate/undergrad course, it seems about 50/50ish.

Wait, isn't this just:

So turns out that the slow typer programmer is actually leaving next week. Confirmed my suspicion that the person was not fitting in quite well.

lol how slow was this guy typing?

Not surprising Barrin, and a good sign for sure.