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JavaScript JavaScript Arrays Multidimensional Arrays Review JavaScript Arrays

Posted by Junior Aidee
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Junior Aidee
Front End Web Development Techdegree Graduate 14,657 Points

Quiz Question 2 (What is the correct answer?)

Say you have two arrays, itemsA and itemsB, and you want to combine them into a new array named allItems. Complete the code so that the new allItems array stores the elements from itemsA first, followed by the elements inside itemsB:

const itemsA = [ 'Lightsaber', 'Mockingjay pin', 'Box of chocolates' ]; const itemsB = [ 'Ghost trap', 'The One Ring', 'DeLorean' ] const allItems = [ , ];

Abdi Salad
Abdi Salad
8,078 Points
Abdi Salad
Abdi Salad
8,078 Points 
const itemsA = [ 'Lightsaber', 'Mockingjay pin', 'Box of chocolates' ]; 
const itemsB = [ 'Ghost trap', 'The One Ring', 'DeLorean' ];
const alltems = itemsA.concat(itemsB);

this is how you would you do that. It's important to check out documentation. visiting the JavaScript array documentation would've saved you some time because it has useful methods there.

5 Answers

Junior Aidee
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Junior Aidee
Front End Web Development Techdegree Graduate 14,657 Points
Junior Aidee
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Junior Aidee
Front End Web Development Techdegree Graduate 14,657 Points

Thank you Abdi for your reply. I did google on how to combine the two arrays and I did find the answer that you provided to me but in this specific instance, it looks like the better solution was to use the spread operator to copy both arrays into the third array. That solved my challenge question. Thank you again for your reply.

Kevin nguyen
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Kevin nguyen
Python Development Techdegree Student 1,643 Points

I agree in fact, abdi answer is wrong given the problem being asked. it has a comma but abdi answer ignore the comma

Paul Oketch
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Paul Oketch
Front End Web Development Techdegree Graduate 13,544 Points
Paul Oketch
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Paul Oketch
Front End Web Development Techdegree Graduate 13,544 Points

For this problem, we use the spread operator(...) to join the two arrays.

const itemsA = [ 'Lightsaber', 'Mockingjay pin', 'Box of chocolates' ];
const itemsB = [ 'Ghost trap', 'The One Ring', 'DeLorean' ]
const allItems = [ ...itemsA , ...itemsB  ];
Michael Hicks
Michael Hicks
24,208 Points
Michael Hicks
Michael Hicks
24,208 Points

This is the correct solution. Use the spread operator. This worked for me. thank you Paul Oketch

tundun
tundun
9,202 Points
tundun
tundun
9,202 Points

...itemsA, ...itemsB

Manoj Gurung
Manoj Gurung
5,318 Points
Manoj Gurung
Manoj Gurung
5,318 Points

all the answers donot provide the real answer requested. We gotta change this.

Moise Ngoumape
Moise Ngoumape
15,862 Points
Moise Ngoumape
Moise Ngoumape
15,862 Points

the answer will be ...itemsA, ...itemsB