Skill #2 Array

1. Which statement correctly declares an array in JavaScript?

• var array = [1, 2, 3];

• var array = {1, 2, 3};

• var array = (1, 2, 3);

• var array = <1, 2, 3>;

How do you access the third element in an array named numbers?

• numbers[2];

• numbers[3];

• numbers(3);

• numbers{2};

Which of the following initializes an empty array?

• var array = [];

• var array = {};

• var array = ();

• var array = <>;

How can you iterate over an array named items using a for loop?

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Which method adds one or more elements to the end of an array?

• array.push(element);

• array.pop();

• array.shift();

• array.unshift(element);

What will be the output of the following code?

• "apple"

• "banana"

• "mango"

• undefined

What does the following code return?

• 0

• 1

• 2

• -1

What will be the output of the following code?

• true

• false

• "apple"

• undefined

What will be the output of the following code?

• [2, 4, 6]

• 2

  4

  6

• 1

  2

  3

• undefined

Which of the following code snippets correctly logs each number in the array numbers?

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• 
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•