Reverse the line as per word length in ascending

reverse-line-as-per-word-length.js

'use strict';

const fs = require('fs');

process.stdin.resume();
process.stdin.setEncoding('utf-8');

let inputString = '';
let currentLine = 0;

process.stdin.on('data', function(inputStdin) {
    inputString += inputStdin;
});

process.stdin.on('end', function() {
    inputString = inputString.split('\n');

    main();
});

function readLine() {
    return inputString[currentLine++];
}



/*
 * Complete the 'arrange' function below.
 *
 * The function is expected to return a STRING.
 * The function accepts STRING sentence as parameter.
 */

function arrange(sentence) {
    // Write your code here
    console.log(sentence.split(' '));
    const words = sentence
        .toLowerCase()
        .slice(0, -1) // remove period at the end
        .split(' ');
    let swapped;
    const wordsLen = words.length;
    
    if (wordsLen < 1) {
        return sentence;
    }
    
    do {
        swapped = false;
        for (let i = 0; i < wordsLen - 1; i++) {
            const currentWord = words[i];
            const nextWord = words[i+1];
            if (currentWord.length > nextWord.length) {
                let temp = currentWord;
                words[i] = nextWord;
                words[i+1] = temp;
                swapped = true;
            }
        }
    } while (swapped)
    const lengthWiseOrderSentence = words.join(' ');
    return lengthWiseOrderSentence[0].toUpperCase()
        + lengthWiseOrderSentence.slice(1)
        + '.';
}

const expectedOutput = 'In the are lines order printed reverse.'
console.log('Test case passed:', expectedOutput === arrange('The lines are printed in reverse order.');