b64-lite/node/b64-lite.umd.js

isomorphic base64 library in 152 bytes

(function (global, factory) {
	typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
	typeof define === 'function' && define.amd ? define(['exports'], factory) :
	(factory((global.b64Lite = {})));
}(this, (function (exports) {

function atob(base64) {
    return Buffer.from(base64, 'base64').toString('binary');
}

function btoa(byteString) {
    for (var i = 0, list = byteString; i < list.length; i += 1) {
        var byte = list[i];

        if (String.prototype.charCodeAt.call(byte, 0) > 255) {
            throw "Failed to execute 'btoa': The string to be encoded contains characters outside of the Latin1 range.";
        }
    }
    return Buffer.from(byteString, 'binary').toString('base64');
}

function toBase64(string) {
    return btoa(unescape(encodeURIComponent(string)));
}

function fromBase64(b64) {
    return decodeURIComponent(escape(atob(b64)));
}

exports.atob = atob;
exports.btoa = btoa;
exports.toBase64 = toBase64;
exports.fromBase64 = fromBase64;

})));
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