How can I sort a string of numbers in JavaScript?

Question

Given the following function:

function sortFunction(str) {
  // return srt
}
console.log(sortFunction("20 150 2343 20 9999"));

I am trying to make a function that returns an string with the same sequence of numbers, but sorted by the sum of its characters.

So I should get ("20 150 2343 9999"). What happens with "20"? If 2 numbers are of the same value, I need to sort them as strings.

Hello, consider adding your code to get some help. What have you tried so far? — fjplaurr
– fjplaurr, Commented Nov 28, 2020 at 16:32

Peter Mortensen · Accepted Answer · 2023-01-24 18:28:54Z

0

It might be this:

const sortFunction = str =>
  /* Keep only numbers groups */ str.match(/\d+/g)
  /* Ascending sort           */    .sort((a, b) => +a-b)
  /* Remove duplicates        */    .filter((c, i, t) => !i || t[i-1] != c) // 1st OR != prev
  /* Rebuild a string         */    .join(' ');

console.log(sortFunction("20 150 2343 20 9999")); // 20 150 2343 9999

edited Jan 24, 2023 at 18:28

Peter Mortensen

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answered Nov 28, 2020 at 16:17

Mister Jojo

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3 Comments

user14520680 Over a year ago

I like this answer because it's the most precise, but am on the fence due to its complexity and inefficiency.

Mister Jojo Over a year ago

@expressjs123 I made it more simpler ;)

user14520680 Over a year ago

It's a lot better now

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