Share Link and Text on Facebook using Javascript.

facebook-share.js

let base_url = "https://www.facebook.com/sharer/sharer.php?"; // Base url

// Params
const params = {
  u: "http://google.com", 
  quote: "Replace this with your text",
};

for(const prop in params) base_url += `&${prop}=${encodeURIComponent(params[prop])}`;

window.open(base_url, '', 'left=0,top=0,width=550,height=450,personalbar=0,toolbar=0,scrollbars=0,resizable=0');