Javascript - I created a blob from a string, how do I get the string back out?
In order to extract data from a Blob, you need a FileReader.
var reader = new FileReader();reader.onload = function() { alert(reader.result);}reader.readAsText(blob);
@joey asked how to wrap @philipp's answer in a function, so here's a solution that does that in modern Javascript (thanks @Endless):
const text = await new Response(blob).text()
If the browser supports it, you could go via a blob URI and XMLHttpRequest it
function blobToString(b) { var u, x; u = URL.createObjectURL(b); x = new XMLHttpRequest(); x.open('GET', u, false); // although sync, you're not fetching over internet x.send(); URL.revokeObjectURL(u); return x.responseText;}Then
var b = new Blob(['hello world']);blobToString(b); // "hello world"