Process module

let initialMemory = process.memoryUsage().heapUsed;
let word = process.argv[2]; //the word that user typed begans at index 2

console.log(`Your word is ${word}`)

// Create a new array
let wordArray = [];

// Loop 1000 times, pushing into the array each time
for (let i = 0; i < 1000; i++){
  wordArray.push(`${word} count: ${i}`)
}

console.log(`Starting memory usage: ${initialMemory}. \nCurrent memory usage: ${process.memoryUsage().heapUsed}. \nAfter using the loop to add elements to the array, the process is using ${process.memoryUsage().heapUsed - initialMemory} more bytes of memory.`)

/*
Type in the terminal then enter: node app.js apple
*/