Mini Dashboard Project

Core skill

state + derived data

Build order

Start with HTML, add CSS, then connect JavaScript behavior.

State

Keep important values in JavaScript state, not hidden in random DOM text.

Review

Each project should include a self-check and one improvement idea.

Project pattern

A small version of the project idea.

const total = metrics.reduce((sum, metric) => sum + metric.value, 0);
renderMetric("Total", total);

Beginner trap

A shortcut that makes the project harder to maintain.

totalElement.textContent = "123";
// Display is disconnected from data.

Render function

Projects become cleaner when rendering is explicit.

function render() {
  output.textContent = String(state.value);
}

Status message

Tell users what happened after an action.

status.setAttribute("role", "status");
status.textContent = "Saved successfully.";

Start with a working HTML structure

The project should have meaning before JavaScript.

Name state clearly

Use arrays, objects or variables that describe the feature.

Write one render function

Rendering should be repeatable after state changes.

Handle empty and error states

Small projects still need real product thinking.

Keep accessibility visible

Use buttons, labels, status messages and focus deliberately.

Refactor after it works

First make it work, then make it clean.

Production note

Production projects need file structure, tests, error handling and a clear release checklist once the prototype works.

SEO note

Project pages are useful learning content when the code, explanation and outcome are all visible.