Loading and error states

Read first Task 37

Show “sending…”, then the answer or a clear error — never a dead button.

What should a button do while a request runs?

The editor already contains a starting point. Change it until every check passes — the Next task button unlocks when it does.

What you start with

const b=document.createElement('button');
b.disabled=true;
console.log(b.disabled);

JavaScript 1 automatic check Async and APIs

Code editor Ctrl + Enter runs

const b=document.createElement('button');
b.disabled=true;
console.log(b.disabled);

Run your code to see the output and the checks.

Your result

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Write your code in the middle column and press Run code.

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