According to the answers to this question Const in JavaScript: when to use it and is it necessary? it would make sense to use const for gulpfile.js configuration, would it not?
But in every usage description of gulp-modules, I see var being used like for instance:
var gulp = require('gulp');
var argv = require('yargs').argv;
var autoprefixer = require('gulp-autoprefixer');
//...
As I understand it, these declarations never change while Gulp is running.
Is there a reason for using var? Is it something with node.js compiler? Or is this just a habit?