It is easy to get carried away with adding extra stuff to function while you are at it and the best way to find out whet

Promises are easy to use and anything with a callback can be “promisified”. Callbacks are synchronous and with promises and async…await you get to do things asynchronous which help speed up your code, especially because Javascript is single-threaded.

Having defaults is more elegant than throwing errors because something was not provided. If you really want to catch not provided values you can check my article on 25 javascript solution where I share a way to make things required that throws error if no value provided.

They are all over the internet because people find them “cool”. They are usually weird, non-conventional, and non-obvious when you look at them. It is always best to follow the guidelines of the tool you are using to ensure proper performance. Hacking should be that last alternative.

Except for class and constructor functions instancing, you should never use the “new” keyword for anything else. They can slow compilers down. Javascript is so weird that even leaving out the “new” keyword sometimes things just work.

Therefore, it is quite difficult to argue against it. Still, quite a few people do as they see history from different perspectives which is very good since we always need new perspectives and viewpoints that can critically analyze our history.

Some declaration can be avoided altogether so only declare when it is strictly necessary. Too many declarations may hint at a lack of proper code design or declaration consideration

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ents. As designers receiving a list of comments, revisions, issues, and so on can be daunting. Be sure to balance our feedback by calling out the parts of the experience that we think is working really well. For example, “I really like how you’ve laid out the welcome screen — it flows perfectly from the previous screen. However, it took me a second to notice the login button at the top. Can we make that button more prominent?”

The for-in and for-of loops are very powerful ways to loop. The “for-of” loop lets you go over the values of the array, strings, Map, Set, etc. No need to change something into an array to use .forEach. I would avoid the “for-in” for looping as it is the slowest one and iterates over prototype keys.

You don’t start a money-making business overnight — you start a tiny business and work on it for a few hours after your day job. Over time, you find the problem you’re going to solve, build an audience, and eventually charge your first customer money.

Therefore, it is quite difficult to argue against it. Still, quite a few people do as they see history from different perspectives which is very good since we always need new perspectives and viewpoints that can critically analyze our history.

If you ever need to make for-loops faster try storing the properties of “length” for example and avoid accessing it on every iteration. Check this amazing article explaining loop optimization in more detail.

Your results come from what you do consistently. Habits automate the tasks that lead to results. Your habits act like a mental trigger. When a dog sees a bone it instinctively chases it.

Always put some effort into naming things. If it is hard to name you probably gave it extra responsibility or do not understand what it is. Give it at least a 3 letter name with meaning.

When you chain iteration method or nest loops you are increasing the complexity of the code which may slow things down later on or as your data grows. Even though some operations may require it, always assess your looping strategy to ensure you don’t have unnecessary loops or loops that can be combined together.

The concept is simple. You can do nothing and be in the same place in a year’s time. Or you can be 1.01% better each day. The secret isn’t to be exact with calculating your results or working out how much effort you put in.