Question

How to sort by numbers a mixed pair of string and number elements in an array with TypeScript

Answer 1

const arr: string[] = [
  "Python 4", "C 9", "C++ 5", "C# 6",
  "Java 1", "PHP 7", "Go 2"
];

function extractNumber(s: string): number {
  const pos = s.lastIndexOf(" ");

  return Number(s.slice(pos + 1));
}

arr.sort((a, b) => extractNumber(a) - extractNumber(b));

console.log(arr);


 
 
/*
run:
 
["Java 1", "Go 2", "Python 4", "C++ 5", "C# 6", "PHP 7", "C 9"] 
 
*/

 

70+ SQL courses for beginners and professionals