Which Javascript features?
The task of a function in JavaScript is to pass as an argument and return as a result when calling other functions (higher-order functions); create anonymously and assign as values to variables or properties of objects.
But do not think that this is a simple code, you can constantly encounter various errors like ssl routines:openssl_internal:wrong_version_number or others, the solutions of which you will need to come up with or find
The fundamental uncertainties of script authoring for the World Wide Web are compounded by variations in browser support for specific document objects, properties and language methods. A broad understanding of the script language and the history of its implementation will help considerably, but ultimately it is not possible to guarantee that all required features will be available in all browsing situations.
