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JavaScript Learning from a 5-6 year old JavaScript textbook

I am learning from a JavaScript textbook that is about 5-6 years old, which I know is ancient for a programming textbook, but I love how this book teaches. Obviously, some of what I find here is going to be obsolete. For example, it teaches the "var" keyword. Is this okay though? I figure I can always correct what is outdated later on.
 
I am learning from a JavaScript textbook that is about 5-6 years old, which I know is ancient for a programming textbook, but I love how this book teaches. Obviously, some of what I find here is going to be obsolete. For example, it teaches the "var" keyword. Is this okay though? I figure I can always correct what is outdated later on.
Hi there,
Of course it's alright. The concepts and the basics are the important things that will never change. As far as "var" goes... it's still widely used lol.
 
@Antero360 is right. For leaning purposes, a 5-6 year old book is perfectly fine. Core Javascript is already a lot older than that, and I don't really expect anything in JS to get obsolete in decades to come. Should you need some state-of-the-art functionality not covered in the book you can always consult the web, but since you are still learning that will probably not happen for quite some time to come.
 

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