What method can be used to segment data in an array while also factoring in the preceding value?

Question

What method can be used to segment data in an array while also factoring in the preceding value?

I currently have an array named targetPercentage.

targetPercentage = [0,33,77,132]

Is there a way to divide it into chunks of size 2 while also including the previous value? Additionally, is it possible to convert it into a JavaScript object array with corresponding properties?

Here's an example of the desired output:

[0,33]
[33,77]
[77,132]

Here's an example of converting it into an array of objects:

thresholds : [ {from:0,to:33},{from:33,to:77},{from:77,to:132} ]

I'm looking for a solution similar to this question but with the inclusion of the previous value.

javascript arrays

Answer 1

Answer №1

To build an array from the ground up, utilize Array.from to retrieve the ith element along with the i + 1th element during each iteration in order to form the objects:

const targetPercentage = [0,33,77,132];
const result = Array.from(
  { length: targetPercentage.length - 1 },
  (_, i) => ({ from: targetPercentage[i], to: targetPercentage[i + 1] })
);
console.log(result);

Alternatively, if you desire an array of arrays:

(_, i) => ([ targetPercentage[i], targetPercentage[i + 1] ])

Answer 2

To build an array from the ground up, utilize Array.from to retrieve the ith element along with the i + 1th element during each iteration in order to form the objects:

const targetPercentage = [0,33,77,132];
const result = Array.from(
  { length: targetPercentage.length - 1 },
  (_, i) => ({ from: targetPercentage[i], to: targetPercentage[i + 1] })
);
console.log(result);

Alternatively, if you desire an array of arrays:

(_, i) => ([ targetPercentage[i], targetPercentage[i + 1] ])

Answer 3

Answer №2

let targetValues = [20, 40, 60, 80]

let levelLimits = []
for (let j = 0; j < targetValues.length - 1; j++) {
let interval = {
  start: targetValues[j],
  end: targetValues[j + 1]
 }
 levelLimits.push(interval) 
}

Answer 4

let targetValues = [20, 40, 60, 80]

let levelLimits = []
for (let j = 0; j < targetValues.length - 1; j++) {
let interval = {
  start: targetValues[j],
  end: targetValues[j + 1]
 }
 levelLimits.push(interval) 
}

Answer 5

Answer №3

Give this a shot:

function binaryConvert(data) {
  let output = []

  for (let i=0; i<data.length-1; i++) {
    output.push({
      start: data[i],
      end: data[i+1]
    })
  }

 return output
}

Answer 6

Give this a shot:

function binaryConvert(data) {
  let output = []

  for (let i=0; i<data.length-1; i++) {
    output.push({
      start: data[i],
      end: data[i+1]
    })
  }

 return output
}

Answer 7

Answer №4

When using the array function slice(initial,count), it will slice the given array into 3 chunks, each containing 2 elements.

The temporary array will contain [0,33], [33,77], [77,132]

var i, j, tempArray, chunk = 2;
result = [];
for (i = 0, j = targetPercentage.length; i < j - 1; i++) {
    tempArray = targetPercentage.slice(i, i + chunk);
    result.push({ from: tempArray[0], to: tempArray[1] });
}
console.log(result);

Answer 8

When using the array function slice(initial,count), it will slice the given array into 3 chunks, each containing 2 elements.

The temporary array will contain [0,33], [33,77], [77,132]

var i, j, tempArray, chunk = 2;
result = [];
for (i = 0, j = targetPercentage.length; i < j - 1; i++) {
    tempArray = targetPercentage.slice(i, i + chunk);
    result.push({ from: tempArray[0], to: tempArray[1] });
}
console.log(result);

What method can be used to segment data in an array while also factoring in the preceding value?

Answer №1

Answer №2

Answer №3

Answer №4

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