JavaScript Tutorial For Beginners! Learn JavaScript in 25 Mins! | Extreme Basics

If you've seen the JavaScript tutorial video by Derek Banas, then you're probably already familiar with a lot of the concepts we go over today, but if you're a complete beginner that doesn't know anything about JavaScript programming, then this video if for you!

We talk about some general programming concepts like variables and functions, as well as some JavaScript specific functions, and different ways to include JavaScript in your page from JavaScript onclick, to HTML script tags, and linking to an external JS file.

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[prakashbhatti]

very good sir. please give us part 2 ASAP.

[sebastiansimon]

Some possible mistakes, clarification, recommendations, and pedantry:


7:51 The width and height attributes of images are supposed to be just numbers, without a unit.

8:48 Accessing “.src” or “.href” refers to the element’s _property, _ not the attribute. “.setAttribute” would do that. You may encounter some problems if you don’t regard this difference.

15:23 camelCase is the naming scheme that is consistent with JavaScript.

18:35 “Let’s put the name of a variable […]” — …for that _parameter, _ yes; though, indeed, it will act as a variable within that function.

19:14 Such a “returnThis” variable is not needed in this case. You can simply “return


24:11 _Pipes_ are what these are commonly referred to: “||”. Officially, they’re called “vertical line”s in Unicode.


There are a few possible pitfalls with variables, that weren’t mentioned, like why assigning “document.getElementById” itself to a variable wouldn’t work as is¹, or why assigning “.style.display” to a variable, then modifying that variable wouldn’t work.²


2: That’s because only the value gets assigned. With, say, “.style”, you actually have a reference to a “CSS2Properties” object. Assining to object properties is a different thing than reassining variables.

[kev]

Good video man. I enjoyed tutorial cant wait for part 2

[ExtremeBasics]

Thanks so much for watching today's JavaScript programming tutorial! If you have any suggestions for future videos, be sure to let us know!

[CheriEbooksKidsLearning]

L🌀VE👍🏻...new subscriber here and like #6!