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docs(uuid): complete documentation (#4044)
* chore(uuid): complete documentation * fmt * tweaks * further tweaks * tweak --------- Co-authored-by: Asher Gomez <ashersaupingomez@gmail.com>
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David Luis
GitHub
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44
uuid/mod.ts
44
uuid/mod.ts
@ -4,9 +4,7 @@
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/**
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* Generators and validators for UUIDs for versions v1, v3, v4 and v5.
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*
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* Consider using the web platform
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* [`crypto.randomUUID`](https://developer.mozilla.org/en-US/docs/Web/API/Crypto/randomUUID)
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* for v4 UUIDs instead.
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* Use {@linkcode crypto.randomUUID} for v4 generating v4 UUIDs.
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*
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* Based on https://github.com/kelektiv/node-uuid -> https://www.ietf.org/rfc/rfc4122.txt
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*
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@ -18,22 +16,26 @@
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*/
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export * from "./constants.ts";
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export * as v1 from "./v1.ts";
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export * as v3 from "./v3.ts";
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export * as v4 from "./v4.ts";
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export * as v5 from "./v5.ts";
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import * as v1 from "./v1.ts";
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import * as v3 from "./v3.ts";
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import * as v4 from "./v4.ts";
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import * as v5 from "./v5.ts";
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/**
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* The nil UUID is special form of UUID that is specified to have all 128 bits
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* set to zero.
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*/
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export const NIL_UUID = "00000000-0000-0000-0000-000000000000";
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/**
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* Check if the passed UUID is the nil UUID.
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*
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* ```js
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* @example
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* ```ts
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* import { isNil } from "https://deno.land/std@$STD_VERSION/uuid/mod.ts";
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*
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* isNil("00000000-0000-0000-0000-000000000000") // true
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* isNil(crypto.randomUUID()) // false
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* isNil("00000000-0000-0000-0000-000000000000"); // true
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* isNil(crypto.randomUUID()); // false
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* ```
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*/
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export function isNil(id: string): boolean {
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@ -43,11 +45,12 @@ export function isNil(id: string): boolean {
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/**
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* Test a string to see if it is a valid UUID.
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*
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* ```js
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* import { validate } from "https://deno.land/std@$STD_VERSION/uuid/mod.ts"
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* @example
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* ```ts
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* import { validate } from "https://deno.land/std@$STD_VERSION/uuid/mod.ts";
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*
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* validate("not a UUID") // false
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* validate("6ec0bd7f-11c0-43da-975e-2a8ad9ebae0b") // true
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* validate("not a UUID"); // false
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* validate("6ec0bd7f-11c0-43da-975e-2a8ad9ebae0b"); // true
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* ```
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*/
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export function validate(uuid: string): boolean {
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@ -60,11 +63,12 @@ export function validate(uuid: string): boolean {
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/**
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* Detect RFC version of a UUID.
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*
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* ```js
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* import { version } from "https://deno.land/std@$STD_VERSION/uuid/mod.ts"
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* @example
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* ```ts
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* import { version } from "https://deno.land/std@$STD_VERSION/uuid/mod.ts";
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*
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* version("d9428888-122b-11e1-b85c-61cd3cbb3210") // 1
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* version("109156be-c4fb-41ea-b1b4-efe1671c5836") // 4
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* version("d9428888-122b-11e1-b85c-61cd3cbb3210"); // 1
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* version("109156be-c4fb-41ea-b1b4-efe1671c5836"); // 4
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* ```
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*/
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export function version(uuid: string): number {
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@ -74,5 +78,3 @@ export function version(uuid: string): number {
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return parseInt(uuid[14], 16);
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}
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export { v1, v3, v4, v5 };
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56
uuid/v1.ts
56
uuid/v1.ts
@ -8,6 +8,15 @@ const UUID_RE =
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/**
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* Validates the UUID v1.
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*
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* @example
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* ```ts
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* import { validate } from "https://deno.land/std@$STD_VERSION/uuid/v1.ts";
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*
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* validate("ea71fc60-a713-11ee-af61-8349da24f689"); // true
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* validate("fac8c1e0-ad1a-4204-a0d0-8126ae84495d"); // false
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* ```
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*
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* @param id UUID value.
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*/
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export function validate(id: string): boolean {
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@ -20,18 +29,60 @@ let _clockseq: number;
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let _lastMSecs = 0;
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let _lastNSecs = 0;
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/** The options used for generating a v1 UUID. */
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/** The options used for generating a v1 UUID in {@linkcode generate}. */
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export interface V1Options {
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/**
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* An array of 6 bytes that represents a 48-bit IEEE 802 MAC address.
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*
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* @see {@link https://www.rfc-editor.org/rfc/rfc4122#section-4.1.6}
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*/
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node?: number[];
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/**
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* A 14-bit value used to avoid duplicates that could arise when the clock is
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* set backwards in time or if the node ID changes (0 - 16383).
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*
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* @see {@link https://www.rfc-editor.org/rfc/rfc4122#section-4.1.5}
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*/
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clockseq?: number;
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/**
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* The number of milliseconds since the Unix epoch (January 1, 1970).
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*
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* @see {@link https://www.rfc-editor.org/rfc/rfc4122#section-4.1.4}
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*/
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msecs?: number;
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/**
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* The number of nanoseconds to add to {@linkcode V1Options.msecs}
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* (0 - 10,000).
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*
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* @see {@link https://www.rfc-editor.org/rfc/rfc4122#section-4.1.4}
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*/
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nsecs?: number;
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/** An array of 16 random bytes (0 - 255). */
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random?: number[];
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/**
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* A function that returns an array of 16 random bytes (0 - 255).
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* Alternative to {@linkcode V1Options.random}.
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*/
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rng?: () => number[];
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}
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/**
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* Generates a RFC4122 v1 UUID (time-based).
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*
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* @example
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* ```ts
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* import { generate } from "https://deno.land/std@$STD_VERSION/uuid/v1.ts";
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*
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* const options = {
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* node: [0x01, 0x23, 0x45, 0x67, 0x89, 0xab],
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* clockseq: 0x1234,
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* msecs: new Date("2011-11-01").getTime(),
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* nsecs: 5678,
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* };
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*
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* generate(options); // "710b962e-041c-11e1-9234-0123456789ab"
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* ```
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*
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* @param options Can use RFC time sequence values as overwrites.
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* @param buf Can allow the UUID to be written in byte-form starting at the offset.
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* @param offset Index to start writing on the UUID bytes in buffer.
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@ -89,6 +140,9 @@ export function generate(
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_lastNSecs = nsecs;
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_clockseq = clockseq;
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// We have to add this value because "msecs" here is the number of
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// milliseconds since January 1, 1970, not since October 15, 1582.
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// This is also the milliseconds from October 15, 1582 to January 1, 1970.
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msecs += 12219292800000;
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const tl = ((msecs & 0xfffffff) * 10000 + nsecs) % 0x100000000;
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@ -14,9 +14,9 @@ const UUID_RE =
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*
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* @example
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* ```ts
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* import { generate as generateV3, validate } from "https://deno.land/std@$STD_VERSION/uuid/v3.ts";
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* import { generate, validate } from "https://deno.land/std@$STD_VERSION/uuid/v3.ts";
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*
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* validate(await generateV3("6ba7b811-9dad-11d1-80b4-00c04fd430c8", new Uint8Array())); // true
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* validate(await generate("6ba7b811-9dad-11d1-80b4-00c04fd430c8", new Uint8Array())); // true
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* validate(crypto.randomUUID()); // false
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* validate("this-is-not-a-uuid"); // false
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* ```
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