Can I use require(“path”).join to safely concatenate urls?

Question

Is this safe to use require(\"path\").join to concatenate URLs, for example:

require(\"path\").join(\"http://example.com\", \"ok\"); 
//returns          


        

Answer 1

There are other working answers, but I went with the following. A little path.join/URL combo.

const path = require('path');
//
const baseUrl = 'http://ejemplo.mx';
// making odd shaped path pieces to see how they're handled.
const pieces = ['way//', '//over/', 'there/'];
//
console.log(new URL(path.join(...pieces), baseUrl).href);
// http://ejemplo.mx/way/over/there/

// path.join expects strings. Just an example how to ensure your pieces are Strings.
const allString = ['down', 'yonder', 20000].map(String);
console.log(new URL(path.join(...allString), baseUrl).href);
// http://ejemplo.mx/down/yonder/20000