Please  elaborate your answer on each of the following questions:

1. Write a Java Script using for loop for displaying sum of first 150 numbers. 

2. Explain the structure of java script program. 

3. Explain the syntax of function in java script with example. 

4. Define AngularJS and what are its key features? 

5. What are AngularJS directives? 

6. What are the 3 types of e-commerce? 

7. What is a common challenge of e-commerce? 

8. Tell us which different sector e-commerce applications are available in the market? 

Assignment Evaluation Rules: 

Overall presentation  100

Introduction  10

Structure 70

Recommendation 10

Conclusion 10