Releases the file lock for the associated file resource or frees the memory for the Blob object. After calling this method, performing addition operations on the Blob object fails and throws an exception.
Method of apis/file/Blobapis/file/Blob
Syntax Blob.close();
No return value
ExamplesThis example creates a text blob object, reports its size, splits the blob object in half, reports that size, then closes the blob object.
<script>
var blobj = new Blob(["I scream, you scream, we <b>all</b> scream for ice cream!"], { "type" : "text/xml" });
alert("Blob size: " + blobj.size);
var blobjfirsthalf = blobj.slice(0, Math.round(blobj.size/2));
alert("Blob first half size: " + blobjfirsthalf.size);
blobj.close();
</script>
Microsoft Developer Network: Windows Internet Explorer API reference Article
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