Obtengo el valor {ancho: 0, alto: 0}. ¿Cómo alcanzar el valor?
function getImageSize(file) { if (/\.(jpe?g|png|gif)$/i.test(file.name)) { var reader = new FileReader(); var read = reader.onload = () => { var image = new Image(); var value = image.onload = () => { var size = { width: image.width, height: image.height }; return size; } image.src = reader.result; return value(); } reader.readAsDataURL(file); return (read()); } }