js-uploader/dist/esm/utils/nanoid.js

A JavaScript library for file upload

export var urlAlphabet = 'useandom-26T198340PX75pxJACKVERYMINDBUSHWOLF_GQZbfghjklqvwyzrict';
export var random = function (bytes) { return crypto.getRandomValues(new Uint8Array(bytes)); };
export var customRandom = function (alphabet, defaultSize, getRandom) {
    var mask = (2 << (Math.log(alphabet.length - 1) / Math.LN2)) - 1;
    var step = -~((1.6 * mask * defaultSize) / alphabet.length);
    return function (size) {
        if (size === void 0) { size = defaultSize; }
        var id = '';
        while (true) {
            var bytes = getRandom(step);
            var j = step;
            while (j--) {
                id += alphabet[bytes[j] & mask] || '';
                if (id.length === size)
                    return id;
            }
        }
    };
};
export var customAlphabet = function (alphabet, size) {
    if (size === void 0) { size = 21; }
    return customRandom(alphabet, size, random);
};
export var nanoid = function (size) {
    if (size === void 0) { size = 21; }
    return crypto.getRandomValues(new Uint8Array(size)).reduce(function (id, byte) {
        byte &= 63;
        if (byte < 36) {
            // `0-9a-z`
            id += byte.toString(36);
        }
        else if (byte < 62) {
            // `A-Z`
            id += (byte - 26).toString(36).toUpperCase();
        }
        else if (byte > 62) {
            id += '-';
        }
        else {
            id += '_';
        }
        return id;
    }, '');
};
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