Week 8.2

What is the correct way to declare an array in JavaScript?

• var array = {}

• var array = []

• var array = ()

• var array = ""

How do you access the first element of an array?

• array[0]

• array[1]

• array.first

• array.first()

How do you add an element to the end of an array?

• array.add(element)

• array.push(element)

• array.pop()

How do you remove the last element from an array?

• array.remLast()

• array.shift()

• array.deleteLast()

• array.pop()

How do you remove one element from a specific index in an array?

• array.remove(index)

• array.splice(index, 1)

• array.slice(index, 1)

What does the splice() method do?

• Joins two arrays together

• Prints the contents of an array

• Joins two different arrays together into a new array

• Adds and Removes elements from anywhere in the array

What does the slice() method do?

• Joins two arrays together

• Prints the contents of an array

• Selects a portion of an existing array and makes a new array.

• Removes elements from an array

What does the concat() method do?

• Joins two different arrays together into a new array

• Selects a portion of an existing array and makes a new array

• Prints the contents of an array

• Removes elements from an array

What happens to the original arrays when using concat()?

• They are modified

• They are deleted

• They are preserved

• They are reversed

What are the elements of "plants" example?

var flowers = ["Rose", "Lily", "Tulip", "Daffodil"];

var shrubs = ["Lilac", "Rhododendron", "Azalea"];

var plants = flowers.concat(shrubs);

• Rose,Lily,Tulip,Daffodil

• Lily,Tulip,Daffodil

• Lilac,Rhododendron,Azalea, Rose, Lily

• Rose,Lily,Tulip,Daffodil,Lilac,Rhododendron,Azalea