Finding the index of a column based on a continuous sequence of values can be achieved by following these

Question

Finding the index of a column based on a continuous sequence of values can be achieved by following these

Consider this sequence of numbers representing components on a page:

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29

Every set of 3 numbers makes up a page, with indexing restarting for each new page. Essentially, it follows column-based indexing.

You can visualize it as:

Where every row represents a page and each column represents a component.

The goal is to determine the specific page/row and component/column based solely on these numbers. Both pages and components are indexed starting from 0.

I have successfully identified the page index using Math.floor(number / 3), but how can I pinpoint the component?

For instance, 20 corresponds to component 2 on page 6, 10 signifies component 1 on page 3, and 27 indicates component 0 on page 9.

javascript counting

Answer 1

Answer №1

To get the remainder, use the modulus operator:

let result = total % 5;

Answer 2

To get the remainder, use the modulus operator:

let result = total % 5;

Answer 3

Answer №2

To retrieve the component, utilize the symbol %, and for obtaining the page, perform division as shown below:

/*
0   1   2
3   4   5
6   7   8
9   10  11
12  13  14
15  16  17
18  19  20
21  22  23
24  25  26
27  28  29
*/

function getComponentDetails(offset) {
  return {
    page: Math.floor(offset / 3),
    component: offset % 3
  }
}

console.log(getComponentDetails(6))
console.log(getComponentDetails(10))
console.log(getComponentDetails(22))

Answer 4

To retrieve the component, utilize the symbol %, and for obtaining the page, perform division as shown below:

/*
0   1   2
3   4   5
6   7   8
9   10  11
12  13  14
15  16  17
18  19  20
21  22  23
24  25  26
27  28  29
*/

function getComponentDetails(offset) {
  return {
    page: Math.floor(offset / 3),
    component: offset % 3
  }
}

console.log(getComponentDetails(6))
console.log(getComponentDetails(10))
console.log(getComponentDetails(22))

Finding the index of a column based on a continuous sequence of values can be achieved by following these

Answer №1

Answer №2

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