Sort Text file content in Typescript

sort-text-file.ts

import { readLines } from "https://deno.land/std@0.196.0/io/read_lines.ts";


const f= await Deno.open('tests/timing-for-ci.txt');

let counter = 0
const timedTests = [];
const timed = [];
let test: string; 
let time: string;
for await (let line of readLines(f)) {
  if (counter === 0) {
    test = line
    console.log(test)
    counter = 1
  } else if (counter === 1) {
    time = line
    counter = 2
  }
  if (counter === 2) {
    timedTests.push({
      test: test,
      time: time
    })
    counter = 0

  }
}

timedTests.sort((a, b) => {
   const A = a.test;
   const B = b.test;
   return A.localeCompare(B);
});

const f= await Deno.open();

Deno.removeSync('tests/timing-for-ci.txt')

for (let test of timedTests) {
  Deno.writeTextFileSync('tests/timing-for-ci.txt', `${test.test}\n`, { append: true})
  Deno.writeTextFileSync('tests/timing-for-ci.txt', `${test.time}\n`, { append: true})
}