Edit in JSFiddle


              
<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Example / Preview</title>
    <link rel="stylesheet" href="https://unpkg.com/[email protected]/dist/easymde.min.css">
    <script src="https://unpkg.com/[email protected]/dist/easymde.min.js"></script>
</head>

<body>
    <textarea id="myText"></textarea>
    <script>
        var easyMDE = new EasyMDE({
            element: document.getElementById('myText'),
            autosave: {
                enabled: true,
                uniqueId: 12,
                submit_delay: 10000,
                delay: 1000
            },
            indentWithTabs: false,
            minHeight: 200,
            placeholder: 'Votre message au format Markdown',
            promptURLs: true,
            promptTexts: {
            image: 'Url de votre image',
            link: 'Url de votre lien'
            },
            uploadImage: true,
            imageUploadFunction: () => {},
            imageTexts: {
            sbInit: 'Joindre des images par glisser-déposer ou coller depuis le presse-papiers.',
            sbOnDragEnter: 'Déposer l"image pour l"envoyer dans votre galérie',
            sbOnDrop: 'Téléchargement d"images #images_names#',
            sbProgress: 'Téléchargement #file_name#: #progress#%',
            sbOnUploaded: 'Image téléchargée #image_name#'
            },
            spellChecker: false,
            inputStyle: 'textarea',
            nativeSpellcheck: true,
            promptAbbrv: true,
            theme: 'idea',
            previewRender: () => {},
            syncSideBySidePreviewScroll: false
        });
    </script>
</body>

</html>