Markdium-Files in Client-Side JS: Ultimate Guide to Using Files in Web Applications

Markdium-javascript.js

// assuming that processImage and processText are functions
if (file.type.startsWith('image/')) {
    reader.onload = processImage
    reader.readAsDataURL(file)
} else if (file.type.startsWith('text/')) {
    reader.onload = processText
    reader.readAsText(file)
}