Scripting

Question 1

JS context (3)

Answer 1

1. Interpreted language (no compile)
2. Interpreter embedded in hosting environment.
3. Vars are dynamic and automatically casted.

Question 2

JS objects (2)

Answer 2

1. Native (string math date)

2. Host (interact with window or interact with page in window(document))

Question 3

DOM api (2)

Answer 3

1. Allows programs to interact with HTML by modifying document tree.
2. Every node in the dom can be edited through the script.

Question 4

Event and Handlers (1)

Answer 4

1. Define which JS functions have to be called when event happens.

Question 5

AJAX (1)

Answer 5

1. Asynchronously requests and sends data with server over http.

Question 6

Ajax advantages (2)

Answer 6

1. Built on existing technologies

2. Works with different languages and formats.

Question 7

Ajax disad (2)

Answer 7

1. Response time (user can wait without knowing why).

2. Security (Cors).