Hi guys,

What's the difference between the two books below,

JavaScript, The Definitive Guide 5th Edition

Versus

JavaScript, The Definitive Guide 6th Edition


Has some one had read them?

I have them both but I've read the 5th edition but only the half of it.
Is it worthy to finish reading the 5th edition?
Or should I skip it and proceed to 6th edition instead?

Thanks in advance.