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Programming-Idioms

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Idiom #120 Read integer from stdin

Read an integer value from the standard input into the variable n

const {createInterface} = require('readline')

const rl = createInterface ({
  input: process.stdin,
  output: process.stdout
})

rl.question('Input an integer: ', response => {
  let n = parseInt (response)
  // stuff to be done with n goes here

  rl.close()
})

This example only works with nodeJS (server-side JS) because browser JS does not have a standard input.
#include <stdio.h>
int n[15];
fgets(n, 15, stdin);

int n[15]; Int with 15 bytes to use.

Fgets gets user input, and sets n to what it gets

New implementation...
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