Exam 98-382 topic 1 question 26 discussion

Actual exam question from Microsoft's 98-382

Question #: 26
Topic #: 1

DRAG DROP -
Your instructor has asked you to implement code that would display a two-dimensional array of any size inside a <div> tag.
You write the following code:

You need to complete the code.
Which three segments should you use to develop the solution? To answer, move the appropriate code segments from the list of code segments to the answer area and arrange them in the correct order.
Select and Place:

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Suggested Answer:

References: http://www.plus2net.com/javascript_tutorial/array-two-dimension.php

by Sveppur at June 26, 2020, 6:56 a.m.

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Sveppur

Highly Voted 5 years ago

Is that actually correct? Won't each sub-array be iterated through, skipping first few elements in each consecutive one? I think it should rather be: for (var i = 0; i < board.length; i++) { for (var j = 0; j < board[i].length; j++) { div.innerHTML = div.innerHTML + board[i][j] + ' '; } div.innerHTML = div.innerHTML + '<br>'; } } This way, each sub-array will be displayed entirely.

upvoted 10 times

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becky_intelletive

Highly Voted 4 years, 5 months ago

The answer is incorrect. It should actually be the other for loop with var j. Correct: for (var i = 0; i < board.length; i++) { for (var j = 0; j < board[0].length; j++) { div.innerHTML += board[i][j] + ' '; } div.innerHTML += '<br>'; } Note: it doesn't matter if we use board[i].length or board[0].length in this case because we know for certain that each sub-array is the same length since it's a 2D array.

upvoted 7 times

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123nickname123

Most Recent 4 years, 3 months ago

definitely wrong answer

upvoted 1 times

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