How to list files inside a ZIP archive using JSZip

In JSZip, you can list files inside a ZIP archive using zip.fileswhich is an Object with key = filename and value = file metadata object.

JSZip.loadAsync(fileContent).then(function(zip) {
    for(let [filename, file] of Object.entries(zip.files)) {
        // TODO Your code goes here
        console.log(filename);
    }
}).catch(function(err) {
    console.error("Failed to open", filename, " as ZIP file:", err);
})

Full example

This is based on our post on How to read local ZIP in HTML5/Javascript using JSZip

<html>
<body>
    <input type="file" id="myfile" onchange="onMyfileChange(this)" />

    <script src="https://unpkg.com/[email protected]/dist/jszip.js" type="text/javascript"></script>
    <script type="text/javascript">
        function onMyfileChange(fileInput) {
            if(fileInput.files[0] == undefined) {
                return ;
            }

            var filename = fileInput.files[0].name;
            // var filesize = fileInput.files[0].size;
            var reader = new FileReader();
            reader.onload = function(ev) {
                JSZip.loadAsync(ev.target.result).then(function(zip) {
                    console.log(zip)
                }).catch(function(err) {
                    console.error("Failed to open", filename, " as ZIP file");
                })
            };
            reader.onerror = function(err) {
                console.error("Failed to read file", err);
            }
            reader.readAsArrayBuffer(fileInput.files[0]);
        }
    </script>
</body>
</html>