Jonas - Javascript

 variables

– var abc = ”,
– data types

 

Section 3 – How JS works

Scoping
When refer to a var that is not available in the current scope, the program will look to the outer scope (or even outer outer scope)

 

Section 4 – DOM Manipulation

 

classList, .add .remove classes
.toggle, turn on/off the “active” class

 

Section 5 – Objects and Functions

Everything is an object, check with console.log() for __proto__

when we try to access properties or methods of an object it will look in its own scope first, then its proto parents, and so on.

call, apply, bind, to change the this variable. And to pre-set some arguments of a function

 

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