Read an uploaded text file in the browser
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<input type="file" id="names">
<script>
function callback(data) {
let lines = data.content.split("\n");
for (let line of lines) {
console.log(line);
}
}
function upload(){
let f = document.querySelector("#myfile").files[0];
var reader = new FileReader();
reader.onload = function (e) {
callback({
name: f.name,
size: f.size,
type: f.type,
content: e.target.result
});
};
reader.readAsText(f);
}
function main(){
document.querySelector("#myfile").addEventListener("change",upload);
}
window.onload=main;
</script>
</body>
</html>