javascript base64 encode file input

JavaScript
var fileInput = document.getElementById('#myInputID');

var reader = new FileReader();
reader.readAsDataURL(fileInput.files[0]);

reader.onload = function () {
	console.log(reader.result);//base64encoded string
};
reader.onerror = function (error) {
	console.log('Error: ', error);
};

Source

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