pct-encode

Percent-encode characters in strings matching a regular expression

pct-encode

Create versions of strings where characters that match a regular expression are percent encoded.

var pctEncode = require('pct-encode')
 
var encode = pctEncode(/\W/g);
 
console.log(encode("UTF-8 in your URIs: ✓")); // UTF-8%20in%20your%20URIs%3A%20%E2%9C%93 

Given a regular expression, this returns a function that takes a string and returns a copy with characters that match regexp percent-encoded.