Clipboard API — Complete Guide
Clipboard API — Complete Guide: free step-by-step lesson with examples, common mistakes, and interview tips — part of JavaScript Tutorial on Toolliyo Academy.
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JavaScript Tutorial · Lesson 58 of 100
Clipboard API
Basics ✓ → Objects & data ✓ → Async & DOM ✓ → Advanced → Tools → Projects
Advanced · 4 — Production skills · ~10 min · JS HTML DOM & Web APIs
What is this?
navigator.clipboard lets you copy and read text securely — used for "Copy code" buttons.
Why should you care?
Better than old document.execCommand("copy") hacks.
See it live — copy this example
Paste into an HTML file or the browser console (F12). Use Run below when the live editor is available.
async function copyText(text) {
try {
await navigator.clipboard.writeText(text);
console.log("Copied!");
} catch (e) {
console.error("Copy failed", e);
}
}
copyText("Hello from JS");Run Example »
Edit the code below and click Run to see the result in Toolliyo’s live editor.
What happened?
- Requires secure context (HTTPS) and often user gesture.
- readText needs permission.
Practice next
- Run copyText from console or button.
- Show "Copied!" feedback in UI.
- Handle catch for denied permission.
- Copy current textarea selection on button click.
- Paste from clipboard into an input with readText after permission.
Remember
writeText / readText HTTPS + user action Great for copy buttons
ScriptVerse share link
Referral page "Copy link" button uses navigator.clipboard.writeText for one-click sharing.
Outcome: Modern clipboard API replaces fragile hidden-input copy hacks.
Interview prep for this lesson
Practice these questions aloud after reading—each links to a full structured answer.
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