JavaScript Answers

How to fix throwing error “not a function” with JavaScript?

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To fix throwing error "not a function" with JavaScript, we call toISOString on a date object.

For instance, we write

const now = new Date();
const isoString = now.toISOString();

to create a new Date object now.

Then we call now.toISOString to return the datetime string from the date.

By John Au-Yeung

Web developer specializing in React, Vue, and front end development.

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