A10 – Arrays

The purpose of this assignment is to help you understand how to work with conditionals, loops, and arrays in JavaScript.


1 . Add a files named arrays.html, arrays.css, and arrays.js to the appropriate directories in your csci230 directory.

2. In your arrays.html file add a heading that reads “Read the console”.  Center this text both horizontally and vertically in the page.

3. In your arrays.js file add code that demonstrates the following:

  • Create an array named list that contains the values 0,1,2,3,4,5,6,7,8, and 9.
  • Use a for-in loop to print to the console the elements in the array named list.
  • Use a for-of loop to print to the console the elements in the array named list.
  • Use a for-loop to set all of the elements at even indices (0,2,4,6,8) in the array named list to 0.
  • Print the contents of the array named list to the console as a single string.
  • Print to the console the contents of the array named list as a single string with dashes (-) separating the elements.
  • Add the number 7 to the beginning of the array named list.
  • Remove the last element in the array named list.
  • Print the contents of the array named list to the console as a single string.
  • Print the length of the array named list to the console.

 

  • Using the filter method, create an array named nonZero that contains the elements in the array list that are not zero.
  • Print the contents of the array named nonZero to the console as a single string.
  • Add 7, 8, and 9 to the end of the array named nonZero.
  • Print the contents of the array named nonZero to the console as a single string.
  • Reverse the order of the elements in the array named nonZero.
  • Print the contents of the array named nonZero to the console as a single string.
  • Sort the array in numeric order.
  • Print the contents of the array named nonZero to the console as a single string.

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