Creating an Algolia helper plugin that can read from a project’s files
This plugin has a lot of work to do. We have three simple filters to add, a complex filter, and an event that we can use to send the JSON data from a project to Algolia.
Let’s get things set up as before. Navigate to the final plugin directory of this project, /project-5/start/eleventy-plugin-algolia-helper, and run the project. Then, let’s add our simple filters from Chapter 8 – jsDate, jsonify, and htmlStrip:
module.exports = function(eleventyConfig, options) {
     eleventyConfig.addFilter
         ("jsDate", function(dateString) {
        return new Date(dateString);
    });
    eleventyConfig.addFilter("jsonify", function(content) {
        return JSON.stringify(content...
