Site components

import { Experiment } from '@amplitude/experiment-js-client';

// (1) Initialize the experiment client with Amplitude Analytics.
const experiment = Experiment.initializeWithAmplitudeAnalytics(
    'DEPLOYMENT_KEY'
);

// (2) Fetch variants and await the promise result.
await experiment.fetch();

// (3) Lookup a flag's variant.
const variant = experiment.variant('FLAG_KEY');
if (variant.value === 'on') {
    // Flag is on
} else {
    // Flag is off
}