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JavaScript JavaScript Loops, Arrays and Objects Tracking Data Using Objects Review Loops, Arrays, and Objects

lagah rajan
lagah rajan
1,741 Points
Posted by lagah rajan
lagah rajan
1,741 Points

2-d array is an array of objects. i think it is true as [1,2,3].length is explained by saying [1,2,3] is object

so array may also be a object. So array of array is same as array of object . so this may b true. am i correct ?

1 Answer

Jennifer Nordell
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STAFF
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Jennifer Nordell
Treehouse Teacher
Jennifer Nordell
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Jennifer Nordell
Treehouse Teacher

You are correct! An array in JavaScript is an object.

Here's the first line from the documentation on arrays from MDN.

The JavaScript Array object is a global object that is used in the construction of arrays; which are high-level, list-like objects.

Good luck! :sparkles:

lagah rajan
lagah rajan
1,741 Points
lagah rajan
lagah rajan
1,741 Points

thanku mam; actually that is the question in quiz. 2-d array is an array of objects(true/false) with right ans false. so may be it can b change and set true to its right ans (if u feel it or tell me if i am wrong in understanding that question); thanku..

Jennifer Nordell
seal-mask
.a{fill-rule:evenodd;}techdegree
Jennifer Nordell
Treehouse Teacher
Jennifer Nordell
.a{fill-rule:evenodd;}techdegree
Jennifer Nordell
Treehouse Teacher

I'm not Treehouse staff. If you believe this question to be improperly worded then you should contact support with a suggestion. However, given the context, I believe what they meant here was that a multidimensional array is an array of arrays. Array is a specific kind of object.

So in this case, then yes, a multidimensional array is specifically an array (which is a specific kind of object) of arrays (which is again a specific kind of object). A String is also a global object. But a multidimensional array is not an array of String objects. It is specifically an array of arrays. Hope that helps! :sparkles:

lagah rajan
lagah rajan
1,741 Points
lagah rajan
lagah rajan
1,741 Points

ok that is awesome explanation, thanku mam.