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Thomas Ma
15,199 PointsComplete the code below by accessing the values inside the second nested array. The console.log() statement would output
this is for the quiz
3 Answers
Rabin Gharti Magar
Front End Web Development Techdegree Graduate 20,926 PointsHey Thomas Ma,
The answer to that quiz is:
const coords = [
[0, 2],
[1, 3],
[2, 4]
];
console.log( `x: ${coords[1][0]}, y: ${coords[1][1]}` );
Hope this helps !
William Ma
Front End Web Development Techdegree Graduate 12,958 PointsHi Robin, thanks for the answer. could you please explain a little: why x: ${coords[1][0]}, y: ${coords[1][1]}? I review the videos. but still don't understand.
David Fairhurst
Full Stack JavaScript Techdegree Student 5,081 PointsHi William, because JS uses zero-based array indexing (so the first index position is 0 not 1 in an array).
In the example above with have 3 inner arrays inside the outer array. First inner array position = [0], second [1], third [2].
So to access the 1 value in the second inner (nested) array, we need to access the second nested array [1], and then access the first index position of this nested array [0].
To access the 3 value in the second nested array, we need to access the second nested array [1], and then access the second index position of this nested array [1].
William Ma
Front End Web Development Techdegree Graduate 12,958 PointsThanks a lot, David, this is a great help.
Tafadzwa Timothy Gakaka
10,978 PointsTafadzwa Timothy Gakaka
10,978 Pointsindeed it helped