The only way to assign a value to a variable by the user in JavaScript is to use the prompt function or is there any other?
Because in Python, for example, we can do this:
numero = int(input("Informe um número: "))
I ask this, because I'm running my JavaScript codes on the node.js terminal and it does not accept the prompt function.
In Node.js you can use the readline :
const readline = require('readline');
const input = readline.createInterface({
input: process.stdin,
output: process.stdout,
});
input.question('Informe um número: ', (resposta) => {
// TODO: Log the answer in a database
console.log('Número informado: ${resposta}');
input.close();
});
If you want to use async/await you can do it as follows:
const readline = require('readline');
const input = readline.createInterface({
input: process.stdin,
output: process.stdout,
});
const perguntar = (pergunta) => new Promise(resolver => input.question(pergunta, (resposta) => resolver(resposta)));
const executar = async () => {
console.time('Execução');
try {
const resposta = await perguntar('Informe um número: ');
console.log('Número informado: ${resposta}');
} catch (err) {
console.log(err)
}
// Totaliza o tempo de execução
console.timeEnd('Execução');
}
executar();
The readline module provides an interface for reading data from a Readable stream (such as process.stdin) one line at a time.
Free translation:
The readline module provides an interface for reading data from a readable stream (like process.stdin) one line at a time.