Topic-wise Content Distribution Introduction Features of Js How many ways we can add Js to Html Pages? How many types of declarations? Data types Operators Conditions Loops Type of Errors? How to debug our
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Normally, it’s wise to break the code up into separate concerns. There’s a lot more on that topic in Chapter 5. In this case, you’ll separate presentation concerns from data management. The data will come from a stubbed model module named guestlistmodel.js. For now, it will just ...
Hopefully with some practice most of those rules will become just the way you write code, for instance, i did quite ‘forgot’, with time, that Javascript was not a typed language : now i’m sometime surprised to read some code which uses a single var to hold differently typed values, ...
We can see in the image below that sometimes Lit-HTML was even faster than the values inside the table and sometimes a bit slower, but comparing with Preact (and also React because I tried both), Lit-HTML is really consistent time wise, the discrepancy between an update and the other is...
An IIFE incurs costs (both cognitively and performance-wise), so it rarely makes sense to use it inside anifstatement. The preceding example was chosen for didactic reasons. IIFE Variation: Prefix Operators You can also enforce the expression context via prefix operators.For example, you can do...
bun:sqlite's transaction implementation is based on better-sqlite3 (along with this section of the docs), so thanks to Joshua Wise and better-sqlite3 contributors. Database.prototype.serialize SQLite has a built-in way to serialize and deserialize databases to and from memory. bun:sqlite fully...
This technique does have its benefits (though better debugging is not a solid part of it). Code that is written like the above example is even simpler to read. Line-based differentials (used in version control systems like SVN, GIT) might see a slight win as well. Debugging-wise, it is...
Now, finally, it’s time to test how these different approaches work in practice. We start by creating an instance of the Kid object, and then test what different values we get back. The tests and their results are: 01.// Create a new instance ...
To a degree, and for certain things, yes, but doing some things in standard JavaScript is actually faster, both coding wise and performance wise. Anyway, my point is don’t be so quick to dismiss fundamental JavaScript. You might be surprised when you need it. Also, if you don’t ...