webp-hero/dist/convert-binary-data.js

webp image format polyfill for browsers

const BASE64_MARKER = ";base64,";
export const isBase64Url = (src) => src.indexOf(BASE64_MARKER) > -1;
export const convertDataURIToBinary = (dataURI) => {
    const base64Index = dataURI.indexOf(BASE64_MARKER) + BASE64_MARKER.length;
    const base64 = dataURI.substring(base64Index);
    const raw = window.atob(base64);
    const rawLength = raw.length;
    const array = new Uint8Array(new ArrayBuffer(rawLength));
    for (let i = 0; i < rawLength; i++) {
        array[i] = raw.charCodeAt(i);
    }
    return array;
};
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