Data URIs are generally used for this purpose, but can be used on any type of the file. The most common use case for reading a file into a data URI is to display the file contents on a web page immediately. An ArrayBuffer represents a finite number of bytes that may be used to store numbers of any size.
The way data is read from an ArrayBuffer is by using a specific view, such as Int8Array , which treats the underlying bytes as a collection of 8-bit signed integers or Float32Array , which treats the underlying bytes as a collection of bit floating point numbers. These are called typed arrays 2 , which force you to work with a specific numeric type rather than containing any type of data as with traditional arrays. You use an ArrayBuffer primarily when dealing with binary files, to have more fine-grained control over the data.
Reading data from a file using a FileReader is pretty simple. Any viewpoints and opinions expressed in this article are those of Nicholas C.
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How to delete a blob manually. I have created a blob that holds a large chunk of data, i want to delete it once my work is done. Hi can we use the bolb with angular and if my server calls are post and not get method to download the documents which are in excel format.
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Markdown is turned off in code blocks: Image 3 years ago 13 Comments Web Development. What is a Blob?