@datalayer/core
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**Datalayer Core**
27 lines (26 loc) • 1.11 kB
JavaScript
/*
* Copyright (c) 2023-2025 Datalayer, Inc.
* Distributed under the terms of the Modified BSD License.
*/
export const currentUri = () => {
return window.location.protocol + "//" + window.location.host;
};
// https://stackoverflow.com/questions/12168909/blob-from-dataurl
export const dataURItoBlob = (dataURI) => {
// Convert base64 to raw binary data held in a string.
// Doesn't handle URLEncoded DataURIs - see SO answer #6850276 for code that does this.
const byteString = atob(dataURI.split(',')[1]);
// Separate out the mime component.
const mimeString = dataURI.split(',')[0].split(':')[1].split(';')[0];
// Write the bytes of the string to an ArrayBuffer.
const ab = new ArrayBuffer(byteString.length);
// Create a view into the buffer.
const ia = new Uint8Array(ab);
// Set the bytes of the buffer to the correct values.
for (let i = 0; i < byteString.length; i++) {
ia[i] = byteString.charCodeAt(i);
}
// Write the ArrayBuffer to a blob, and you're done.
const blob = new Blob([ab], { type: mimeString });
return blob;
};