Hola, tengo un archivo txt externo con datos para mi función. ¿Cómo puedo almacenar la línea de lectura en la variable?
const fs = require("fs"); const readline = require("readline"); const firstVariable; [it is firstLine] const secondVariable; [it is secondLine] const thirdVariable; [it is thirdLine] const fourthVariable; [it is fourthLine] const readInterface = readline.createInterface({ input: fs.createReadStream("./slo1.in"), output: process.stdout, terminal: false, }); readInterface.on("line", function (line) { console.log(line); });Aquí hay una mejor solución:
const fs = require("fs"); const readline = require("readline"); const readFile = () => { return new Promise((resolve, reject) => { const lineArray = []; const readInterface = readline.createInterface({ input: fs.createReadStream("./slo1.in"), output: process.stdout, terminal: false, }); readInterface.on("line", (line) => { lineArray.push(line); }).on("close", () => { resolve(lineArray); }); }) } readFile().then(res => { console.log(JSON.stringify(res)) }) // or you can use async/await syntax async function readAsync() { const res = await readFile(); console.log(res) }readAsync();