How to divide array in different consecutive sequences

Question

0.00/5 (No votes)

See more:

How to divide this array:- [0, 1, 2, 3, 4, 5, 6, 7, 8, 12, 13, 14, 15] into two different arrays with one set of consecutive sequences in one array and another set of consecutive in another array.

for eg : array = [0, 1, 2, 3, 4, 5, 6, 7, 8, 12, 13, 14, 15]

Desired output [0, 1, 2, 3, 4, 5, 6, 7, 8] and [12, 13, 14, 15]

The array should split into a number of consecutive sequences present in the array. If there are 3 consecutive sequences then the array should split into 3 different arrays with consecutive values and so on.

Another example = [1 ,2 ,3 ,4 5, 14, 15, 16, 22, 23, 24, 25]

Desired output [1, 2, 3, 4, 5] and [14, 15, 16] and [22, 23, 24, 25]

What I have tried:

let arrnew = [0, 1, 2, 3, 4, 5, 6, 7, 8, 12, 13, 14, 15] 
   let arr2 = []

for (let j = 0; j < arrnew.length; j++) {
    if (arrnew[j + 1] - 1 === arrnew[j]) {
        arr2.push(arrnew[j])
    }
}

I tried this but this dint work. I am looking for a solution with inbuilt functions.

Posted 8-Jun-22 9:13am

Apoorv 2021

Updated 8-Jun-22 17:35pm

Add a Solution

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Dougy83 · Answer 1 · 2022-06-08T17:35:00

Have a look at the splice function.

let arrnew = [0, 1, 2, 3, 4, 5, 6, 7, 8, 12, 13, 14, 15, 17, 18, 20] ;
let arr2 = [];

for (let j = 0; j < arrnew.length-1; j++) {
    if (arrnew[j + 1] - 1 !== arrnew[j]) {
        arr2.push(arrnew.splice(0, j+1));
		j = 0;
    }
}

if (arrnew.length > 0) {
	arr2.push(arrnew.splice(0));
}