🔥AI Solved A JavaScript Problem Elegantly With Pure CSS!!

Daily Issue #126 | Subscribe to DS | Daily Sandbox Pro

Hello Developers!

Learn to create native tooltips and dropdowns with the HTML Popover API, audit Core Web Vitals for actionable performance insights, and discover the top 10 must-read books for programmers. Explore Chrome console utilities for debugging and build a GraphQL API with Node.js and MongoDB step-by-step.

Explore jsontr.ee for dynamic JSON tree visualization, and sqlauthz to manage PostgreSQL permissions with declarative Polar rules. Check out alien.js, an MVC design pattern framework, and errsole.js, an open-source logger with a built-in log viewer for Node.js apps. Simplify date and time handling in JavaScript with luxon.

Dive in and keep coding!

Native Popover Element with HTML - Building overlay UI elements like tooltips and dropdowns has always required complex JavaScript libraries. The new HTML Popover API changes this with native browser support for floating elements.

How To Audit Core Web Vitals - In this guide we'll take you all the way from how to start your audit to producing a detailed report full of actionable advice. Whether you're working for a brand, work with clients in an agency, or work as a freelancer: this guide will help help you conduct a great Core Web Vitals audit.

Top 10 Books For Every Programmer - Being a skilled programmer needs more than only code. You can quite easily read a book to learn new skills, improve problem solving and actually understand the real world tech.

Useful Chrome Console Utilities For Debugging - Every standard web browser typically offers tools for developers to debug web apps. For example, most browsers have inbuilt JavaScript debuggers, DOM tree inspectors, network monitors, and network speed simulators.

Building a GraphQL API with Node.js and MongoDB - This guide walks you through building a GraphQL API connected to MongoDB using Node.js. It covers setting up your project, creating a MongoDB schema with Mongoose, and implementing queries and mutations to fetch, add, and delete user data.

More news here →

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Problem: I was brainstorming an elegant solution for an HTML element to display a background gradient as a fallback when the image isn’t available, otherwise showing the image.

Prompt: Here is the HTML tag that I am working with. I need to show a default background gradient when the image is not available. Solve this by using a pure CSS solution. The image would be specified as an attribute of item, like so "item.cover_img"

<div class="app-cover-img" />

AI Suggestion: Very quickly, ChatGPT presented me with a quite elegant solution!

<div class="app-cover-img" data-src="${item.cover_img}" />

<style>
.app-cover-img {
    width: 100%; /* Adjust width */
    height: 200px; /* Adjust height */
    background: linear-gradient(to bottom, #e0e0e0, #ffffff);
    background-size: cover;
    background-position: center;
}

/* Use ::before to inject the data-src value */
.app-cover-img::before {
    content: attr(data-src);
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 0;
    visibility: hidden;
}

/* Fallback to data-src for background image */
.app-cover-img[data-src] {
    background-image: url(attr(data-src));
}
</style>

More code snippets here →

• jsontr.ee - Effortlessly visualize JSON structures as dynamic tree diagrams

• sqlauthz - allows you to manage your permissions in PostgresSQL in a declarative way using simple rules written in the Polar language.

• alien.js - 👽 MVC design pattern and render pipeline

• errsole.js - an open-source logger for Node.js apps. It comes with a built-in log viewer to view, filter, and search your app logs.

• luxon - A library for working with dates and times in JS

More code libs here →

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