Javascript-arrays Flashcards

1
Q

What are arrays used for?

A

store a list items

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2
Q

Describe array literal notation

A

variable name & assign [variable];

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3
Q

how are arrays different from “plain” objects?

A

array = # orders

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4
Q

What number represents the first index of an array?

A

array[0]

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5
Q

What is the length property of an array?

A
# of items.
array.length
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6
Q

How do you calculate the last index of an array?

A

array.length-1

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