jQuery code to display recent posts from the WordPress API

wp-api-call.js

  jQuery(document).ready(function($) {
    $.get( "wp-json/wp/v2/posts", function( data ) {
        $.each( data, function( i, val ) {
            $( "#app" ).append(
                '<li>' + 
                    '<h3>' +
                    val.title.rendered + 
                    '</h3>' +
                    '<p>' +
                    val.excerpt.rendered +
                    '</p>' +
                '</li>'
            );
        });
    });
  });