reading-notes

Problem Domain

• understanding exactly the problem you are trying to solve, how would the solution behave in certain situations, what is the extent of the solution etc.
• spending extra time figuring out the desired problem domain can save time solving problems not in the desired domain

Objects

• Python classes
• an element with a series of key,value pairs
• keys and values can be added and removed
• multiple instances of an object can be used

The DOM

• Document Object Model
• add, remove, or change HTML content
• Document
  • the web page/HTML document
• Object
  • any HTML tag on the page
  • head, body, div
• Model
  • DOM Tree, listing objects in tree model
• select individual elements (nodes)
  • getElementById()
  • querySelector()
• select multiple elements
  • getElementsByClassName()
  • getElementsByTagName()
  • querySelectorAll()
• update text
  • nodeValue