Question

1. Assuming each line of information is stored in a new array, which of the following pairs are not parallel arrays?

A. names of all students at Santa Fe College

ID numbers of all students at Santa Fe College

B. names of all students at Santa Fe College

names of all students taking JavaScript at Santa Fe College

C. names of all students at Santa Fe College

email addresses of all students at Santa Fe College

D. All three sets shown are examples of parallel arrays.

2. Given the following array, which statement will create a variable named product that multiplies 4 * 5, using array elements?

var nums = new Array(2, 3, 4, 5, 6, 30, 40, 50, 60);

A. var product = nums[1] * nums[2];

B. var product = nums[2] * nums[3];

C. var product = nums[3] * nums[4];

D. var product = nums[4] * nums[5];

3. Which statement will add the value stored in the variable pizza to the food() array given below?

var food = new Array("burger", "chips", "subs", "lasagna");

var pizza = "pepperoni pizza";

A. food[0] = pizza;

B. pizza.push(food);

C. food.push(pizza);

D.. This cannot be done.

Answer 1

1.

B. names of all students at Santa Fe College
names of all students taking JavaScript at Santa Fe College

Explanation: names of javascript only will give lesser elements

2.

B. var product = nums[2] * nums[3];

Explanation: Indices start from 0 and not 1.

3.

C. food.push(pizza);

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