diff options
Diffstat (limited to 'node_modules/nanoid/async/index.browser.cjs')
| -rw-r--r-- | node_modules/nanoid/async/index.browser.cjs | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/node_modules/nanoid/async/index.browser.cjs b/node_modules/nanoid/async/index.browser.cjs new file mode 100644 index 0000000..7e5bba8 --- /dev/null +++ b/node_modules/nanoid/async/index.browser.cjs @@ -0,0 +1,34 @@ +let random = async bytes => crypto.getRandomValues(new Uint8Array(bytes)) +let customAlphabet = (alphabet, defaultSize = 21) => { + let mask = (2 << (Math.log(alphabet.length - 1) / Math.LN2)) - 1 + let step = -~((1.6 * mask * defaultSize) / alphabet.length) + return async (size = defaultSize) => { + let id = '' + while (true) { + let bytes = crypto.getRandomValues(new Uint8Array(step)) + let i = step + while (i--) { + id += alphabet[bytes[i] & mask] || '' + if (id.length === size) return id + } + } + } +} +let nanoid = async (size = 21) => { + let id = '' + let bytes = crypto.getRandomValues(new Uint8Array(size)) + while (size--) { + let byte = bytes[size] & 63 + if (byte < 36) { + id += byte.toString(36) + } else if (byte < 62) { + id += (byte - 26).toString(36).toUpperCase() + } else if (byte < 63) { + id += '_' + } else { + id += '-' + } + } + return id +} +module.exports = { nanoid, customAlphabet, random } |
