What is meant by basic knowledge of JS?

Question

JavaScript

The vast majority of vacancies for Junior PHP Developers include the item: "Basic knowledge of HTML, CSS, Java Script". What do employers mean by basic knowledge of JS? Does this knowledge include JSON, AJAX, JQuery?

Answer 1

Yes, to master jQuery, you still need to know closures and scopes (for example, currying), event bubbling and how events in general work in JS and what you can do with them, of course, basic things like loops / conditions, it is desirable to have an idea about arrays and be able to work with them work, understand the difference between an array and a hash object, basic types, etc. It is also worth looking at the understanding of working with asynchronous code (callbacks, promises).

Answer 2

Read a js or jquery book for beginners. To have a general understanding of the language. This should be enough.
Here is a good jquery book for beginners. poke

Answer 3

Yes.

Answer 4

JSON for a maximum of 10 minutes of material to read.
I think jquery is needed, since it is already almost part of js.
AJAX is desirable but not required.
Although it's over a lot, it all depends on the employer.

Answer 5

yes, this is the knowledge of json jikveri and ajax, how can you not know them at all?