spee.ch/views/partials/channelCreation.handlebars

<div id="channel-publish-wrapper">
    <p>
        <form id="publish-channel-form">
            <div>
                <div id="input-error-channel-name" class="info-message info-message--failure"></div>
                <label for="new-channel-name">Channel Name: </label>
                @<input type="text" name="new-channel-name" id="new-channel-name" class="input-text input-text--primary" placeholder="exampleChannel" value="" oninput="checkChannelName(event.target.value)">
                <span id="input-success-channel-name" class="info-message info-message--success"></span>
            </div>
            <div>
                <div id="input-error-channel-password" class="info-message info-message--failure"></div>
                <label for="new-channel-password">Password: </label>
                <input type="password" name="new-channel-password" id="new-channel-password" placeholder="" value="" class="input-text input-text--primary">
            </div>
        </form>
    </p>
    <button onclick="publishNewChannel(event)">Create Channel</button>
</div>

<script type="text/javascript">
 function publishNewChannel (event) {
     const channelName = document.getElementById('new-channel-name').value;
     const password = document.getElementById('new-channel-password').value;
     const channelNameErrorDisplayElement = document.getElementById('input-error-channel-name');
     const passwordErrorDisplayElement = document.getElementById('input-error-channel-password');
     const wrapper = document.getElementById('channel-publish-wrapper');
     // prevent default so this script can handle submission
     event.preventDefault();
     // validate submission
     validateNewChannelSubmission(channelName, password)
         .then(() => {
             wrapper.innerHTML = '<p>Creating your new channel...</p>';
             return sendAuthRequest(channelName, password, '/signup') // post the request
         })
         .then(() => {
             console.log('success');
             wrapper.innerHTML = '<p>Your channel has been successfully created!</p>';
             // referesh window logged in as the channel
             window.location.href = '/';
         })
         .catch(error => {
             if (error.name === 'ChannelNameError'){
                 showError(channelNameErrorDisplayElement, error.message);
             } else if (error.name === 'ChannelPasswordError'){
                 showError(passwordErrorDisplayElement, error.message);
             } else {
                 console.log('failure:', error);
             }
         })
 }
</script>