@bevry/ecmascript-versions - npm Package Compare versions

Comparing version 2.0.1 to 3.0.0-next.1627394229.5637b89385b3fc7aa4e821a9e1a5189a392fe60c

compiled-types/index.d.ts

@@ -14,3 +14,4 @@ /**
 /**
- * All the details about an ECMAScript edition/version.
+ * All the information about an ECMAScript edition/version.
+ * https://en.wikipedia.org/wiki/ECMAScript#Versions
  */
@@ -22,23 +23,38 @@ export declare type ESVersionInformation = {
 };
+/** Get the associated ECMAScript version information for the version identifier. */
+export declare function getESVersionInformationByVersion(version: ESVersionIdentifier): ESVersionInformation;
 /**
- * The mapping of an ECMAScript edition number to its information.
+ * Get all the associated ECMAScript version information for the version identifiers.
  * Sorted from oldest first to most recent last.
- * https://en.wikipedia.org/wiki/ECMAScript#Versions
  */
-export declare type ESVersionMap = Map<Number, ESVersionInformation>;
+export declare function getESVersionsInformationByVersion(versions: Array<ESVersionIdentifier>): Array<ESVersionInformation>;
 /**
- * Get all the ECMAScript versions that have been ratified by the datetime.
+ * Get all the ECMAScript versions that have been ratified by the specified datetime.
  * Sorted from oldest first to most recent last.
  */
-export declare function getESVersionsInformation(when?: Date): Array<ESVersionInformation>;
+export declare function getESVersionsInformationByDate(when: Date): Array<ESVersionInformation>;
 /**
- * Get all the ECMAScript versions that have been ratified by the datetime.
+ * Get all the ECMAScript versions that have been ratified by the specified datetime.
  * Sorted from oldest first to most recent last.
  */
-export declare function getESVersions(when?: Date): Array<ESVersionIdentifier>;
-/** Get the latest ECMAScript version details that was the ratified by the datetime. */
-export declare function getESVersionInformation(when?: Date): ESVersionInformation;
-/** Get the latest ECMAScript version that has been ratified by the datetime. */
-export declare function getESVersion(when?: Date): string;
-/** Get the ECMAScript version details by the edition number. */
+export declare function getESVersionsByDate(when: Date): Array<ESVersionIdentifier>;
+/** Get the latest ECMAScript version information that was the ratified by the specified datetime. */
+export declare function getESVersionInformationByDate(when: Date): ESVersionInformation;
+/** Get the latest ECMAScript version that has been ratified by the specified datetime. */
+export declare function getESVersionByDate(when?: Date): string;
+/**
+ * Get all the ECMAScript versions that have been ratified by the current datetime, or {@link datetime}.
+ * Sorted from oldest first to most recent last.
+ */
+export declare function getESVersionsInformationByNow(): ESVersionInformation[];
+/**
+ * Get all the ECMAScript versions that have been ratified by the current datetime, or {@link datetime}.
+ * Sorted from oldest first to most recent last.
+ */
+export declare function getESVersionsByNow(): string[];
+/** Get the latest ECMAScript version information that was the ratified by the current datetime, or {@link datetime}. */
+export declare function getESVersionInformationByNow(): ESVersionInformation;
+/** Get the latest ECMAScript version that has been ratified by the current datetime, or {@link datetime}. */
+export declare function getESVersionByNow(): string;
+/** Get the ECMAScript version information by the edition number. */
 export declare function getESVersionInformationByEdition(edition: Number): ESVersionInformation;
@@ -45,0 +61,0 @@ /** Get the ECMAScript version by the edition number. */

edition-browsers/index.js

@@ -21,5 +21,9 @@ /**
 }
-const esVersionMap = new Map();
+/**
+ * ECMAScript version information mapped by the edition number.
+ * Sorted from oldest first to most recent last.
+ */
+const esVersionsByEdition = new Map();
 // June 1997
-esVersionMap.set(1, {
+esVersionsByEdition.set(1, {
     version: 'ES1',
@@ -30,3 +34,3 @@ ratified: new Date('1997-06-01'),
 // June 1998
-esVersionMap.set(2, {
+esVersionsByEdition.set(2, {
     version: 'ES2',
@@ -37,3 +41,3 @@ ratified: new Date('1998-06-01'),
 // December 1999
-esVersionMap.set(3, {
+esVersionsByEdition.set(3, {
     version: 'ES3',
@@ -45,3 +49,3 @@ ratified: new Date('1999-12-01'),
 // December 2009
-esVersionMap.set(5, {
+esVersionsByEdition.set(5, {
     version: 'ES5',
@@ -54,3 +58,3 @@ ratified: new Date('2009-12-01'),
 for (let year = 2015, edition = 6; year <= now.getFullYear(); year++, edition++) {
-    esVersionMap.set(edition, {
+    esVersionsByEdition.set(edition, {
         version: `ES${year}`,
@@ -61,9 +65,34 @@ ratified: new Date(`${year}-06-01`),
 }
-// Premake as an array
-const esVersionList = Array.from(esVersionMap.values());
 /**
- * Get all the ECMAScript versions that have been ratified by the datetime.
+ * ECMAScript version information as an array.
  * Sorted from oldest first to most recent last.
  */
-export function getESVersionsInformation(when = now) {
+const esVersionList = Array.from(esVersionsByEdition.values());
+/**
+ * ECMAScript version information mapped by the version identifier.
+ * Sorted from oldest first to most recent last.
+ */
+const esVersionsByVersion = new Map(esVersionList.map((v) => [v.version, v]));
+// ------------------------------------
+// By Version
+/** Get the associated ECMAScript version information for the version identifier. */
+export function getESVersionInformationByVersion(version) {
+    if (esVersionsByVersion.has(version))
+        return esVersionsByVersion.get(version);
+    throw new Error(`ECMAScript version was not found: ${version}`);
+}
+/**
+ * Get all the associated ECMAScript version information for the version identifiers.
+ * Sorted from oldest first to most recent last.
+ */
+export function getESVersionsInformationByVersion(versions) {
+    return versions.map((version) => getESVersionInformationByVersion(version));
+}
+// ------------------------------------
+// By Date
+/**
+ * Get all the ECMAScript versions that have been ratified by the specified datetime.
+ * Sorted from oldest first to most recent last.
+ */
+export function getESVersionsInformationByDate(when) {
     const time = when.getTime();
@@ -76,19 +105,45 @@ const results = esVersionList.filter((meta) => time >= meta.ratified.getTime());
 /**
- * Get all the ECMAScript versions that have been ratified by the datetime.
+ * Get all the ECMAScript versions that have been ratified by the specified datetime.
  * Sorted from oldest first to most recent last.
  */
-export function getESVersions(when = now) {
-    return getESVersionsInformation(when).map((meta) => meta.version);
+export function getESVersionsByDate(when) {
+    return getESVersionsInformationByDate(when).map((meta) => meta.version);
 }
-/** Get the latest ECMAScript version details that was the ratified by the datetime. */
-export function getESVersionInformation(when = now) {
-    return getESVersionsInformation(when).slice(-1)[0];
+/** Get the latest ECMAScript version information that was the ratified by the specified datetime. */
+export function getESVersionInformationByDate(when) {
+    return getESVersionsInformationByDate(when).slice(-1)[0];
 }
-/** Get the latest ECMAScript version that has been ratified by the datetime. */
-export function getESVersion(when = now) {
-    return getESVersionInformation(when).version;
+/** Get the latest ECMAScript version that has been ratified by the specified datetime. */
+export function getESVersionByDate(when = now) {
+    return getESVersionInformationByDate(when).version;
 }
-/** Get the ECMAScript version details by the edition number. */
+// ------------------------------------
+// By Now
+/**
+ * Get all the ECMAScript versions that have been ratified by the current datetime, or {@link datetime}.
+ * Sorted from oldest first to most recent last.
+ */
+export function getESVersionsInformationByNow() {
+    return getESVersionsInformationByDate(now);
+}
+/**
+ * Get all the ECMAScript versions that have been ratified by the current datetime, or {@link datetime}.
+ * Sorted from oldest first to most recent last.
+ */
+export function getESVersionsByNow() {
+    return getESVersionsByDate(now);
+}
+/** Get the latest ECMAScript version information that was the ratified by the current datetime, or {@link datetime}. */
+export function getESVersionInformationByNow() {
+    return getESVersionInformationByDate(now);
+}
+/** Get the latest ECMAScript version that has been ratified by the current datetime, or {@link datetime}. */
+export function getESVersionByNow() {
+    return getESVersionByDate(now);
+}
+// ------------------------------------
+// By Edition
+/** Get the ECMAScript version information by the edition number. */
 export function getESVersionInformationByEdition(edition) {
-    const meta = esVersionMap.get(edition);
+    const meta = esVersionsByEdition.get(edition);
     if (meta)
@@ -95,0 +150,0 @@ return meta;

edition-deno/index.ts

@@ -31,3 +31,4 @@ /**
 /**
- * All the details about an ECMAScript edition/version.
+ * All the information about an ECMAScript edition/version.
+ * https://en.wikipedia.org/wiki/ECMAScript#Versions
  */
@@ -41,11 +42,8 @@ export type ESVersionInformation = {
 /**
- * The mapping of an ECMAScript edition number to its information.
+ * ECMAScript version information mapped by the edition number.
  * Sorted from oldest first to most recent last.
- * https://en.wikipedia.org/wiki/ECMAScript#Versions
  */
-export type ESVersionMap = Map<Number, ESVersionInformation>
-
-const esVersionMap: ESVersionMap = new Map()
+const esVersionsByEdition: Map<Number, ESVersionInformation> = new Map()
 // June 1997
-esVersionMap.set(1, {
+esVersionsByEdition.set(1, {
 	version: 'ES1',
@@ -56,3 +54,3 @@ ratified: new Date('1997-06-01'),
 // June 1998
-esVersionMap.set(2, {
+esVersionsByEdition.set(2, {
 	version: 'ES2',
@@ -63,3 +61,3 @@ ratified: new Date('1998-06-01'),
 // December 1999
-esVersionMap.set(3, {
+esVersionsByEdition.set(3, {
 	version: 'ES3',
@@ -71,3 +69,3 @@ ratified: new Date('1999-12-01'),
 // December 2009
-esVersionMap.set(5, {
+esVersionsByEdition.set(5, {
 	version: 'ES5',
@@ -84,3 +82,3 @@ ratified: new Date('2009-12-01'),
 ) {
-	esVersionMap.set(edition, {
+	esVersionsByEdition.set(edition, {
 		version: `ES${year}`,
@@ -92,12 +90,46 @@ ratified: new Date(`${year}-06-01`),
 
-// Premake as an array
-const esVersionList = Array.from(esVersionMap.values())
+/**
+ * ECMAScript version information as an array.
+ * Sorted from oldest first to most recent last.
+ */
+const esVersionList = Array.from(esVersionsByEdition.values())
 
 /**
- * Get all the ECMAScript versions that have been ratified by the datetime.
+ * ECMAScript version information mapped by the version identifier.
  * Sorted from oldest first to most recent last.
  */
-export function getESVersionsInformation(
-	when: Date = now
+const esVersionsByVersion: Map<ESVersionIdentifier, ESVersionInformation> =
+	new Map(esVersionList.map((v) => [v.version, v]))
+
+// ------------------------------------
+// By Version
+
+/** Get the associated ECMAScript version information for the version identifier. */
+export function getESVersionInformationByVersion(
+	version: ESVersionIdentifier
+): ESVersionInformation {
+	if (esVersionsByVersion.has(version)) return esVersionsByVersion.get(version)!
+	throw new Error(`ECMAScript version was not found: ${version}`)
+}
+
+/**
+ * Get all the associated ECMAScript version information for the version identifiers.
+ * Sorted from oldest first to most recent last.
+ */
+export function getESVersionsInformationByVersion(
+	versions: Array<ESVersionIdentifier>
 ): Array<ESVersionInformation> {
+	return versions.map((version) => getESVersionInformationByVersion(version))
+}
+
+// ------------------------------------
+// By Date
+
+/**
+ * Get all the ECMAScript versions that have been ratified by the specified datetime.
+ * Sorted from oldest first to most recent last.
+ */
+export function getESVersionsInformationByDate(
+	when: Date
+): Array<ESVersionInformation> {
 	const time = when.getTime()
@@ -112,26 +144,58 @@ const results = esVersionList.filter(
 /**
- * Get all the ECMAScript versions that have been ratified by the datetime.
+ * Get all the ECMAScript versions that have been ratified by the specified datetime.
  * Sorted from oldest first to most recent last.
  */
-export function getESVersions(when: Date = now): Array<ESVersionIdentifier> {
-	return getESVersionsInformation(when).map((meta) => meta.version)
+export function getESVersionsByDate(when: Date): Array<ESVersionIdentifier> {
+	return getESVersionsInformationByDate(when).map((meta) => meta.version)
 }
 
-/** Get the latest ECMAScript version details that was the ratified by the datetime. */
-export function getESVersionInformation(
-	when: Date = now
+/** Get the latest ECMAScript version information that was the ratified by the specified datetime. */
+export function getESVersionInformationByDate(
+	when: Date
 ): ESVersionInformation {
-	return getESVersionsInformation(when).slice(-1)[0]
+	return getESVersionsInformationByDate(when).slice(-1)[0]
 }
 
-/** Get the latest ECMAScript version that has been ratified by the datetime. */
-export function getESVersion(when: Date = now): string {
-	return getESVersionInformation(when).version
+/** Get the latest ECMAScript version that has been ratified by the specified datetime. */
+export function getESVersionByDate(when: Date = now): string {
+	return getESVersionInformationByDate(when).version
 }
 
-/** Get the ECMAScript version details by the edition number. */
+// ------------------------------------
+// By Now
+
+/**
+ * Get all the ECMAScript versions that have been ratified by the current datetime, or {@link datetime}.
+ * Sorted from oldest first to most recent last.
+ */
+export function getESVersionsInformationByNow() {
+	return getESVersionsInformationByDate(now)
+}
+
+/**
+ * Get all the ECMAScript versions that have been ratified by the current datetime, or {@link datetime}.
+ * Sorted from oldest first to most recent last.
+ */
+export function getESVersionsByNow() {
+	return getESVersionsByDate(now)
+}
+
+/** Get the latest ECMAScript version information that was the ratified by the current datetime, or {@link datetime}. */
+export function getESVersionInformationByNow(): ESVersionInformation {
+	return getESVersionInformationByDate(now)
+}
+
+/** Get the latest ECMAScript version that has been ratified by the current datetime, or {@link datetime}. */
+export function getESVersionByNow(): string {
+	return getESVersionByDate(now)
+}
+
+// ------------------------------------
+// By Edition
+
+/** Get the ECMAScript version information by the edition number. */
 export function getESVersionInformationByEdition(
 	edition: Number
 ): ESVersionInformation {
-	const meta = esVersionMap.get(edition)
+	const meta = esVersionsByEdition.get(edition)
 	if (meta) return meta
@@ -138,0 +202,0 @@ throw new Error(`ECMAScript does not have the edition ${edition}`)

edition-es2020-esm/index.js

@@ -21,5 +21,9 @@ /**
 }
-const esVersionMap = new Map();
+/**
+ * ECMAScript version information mapped by the edition number.
+ * Sorted from oldest first to most recent last.
+ */
+const esVersionsByEdition = new Map();
 // June 1997
-esVersionMap.set(1, {
+esVersionsByEdition.set(1, {
     version: 'ES1',
@@ -30,3 +34,3 @@ ratified: new Date('1997-06-01'),
 // June 1998
-esVersionMap.set(2, {
+esVersionsByEdition.set(2, {
     version: 'ES2',
@@ -37,3 +41,3 @@ ratified: new Date('1998-06-01'),
 // December 1999
-esVersionMap.set(3, {
+esVersionsByEdition.set(3, {
     version: 'ES3',
@@ -45,3 +49,3 @@ ratified: new Date('1999-12-01'),
 // December 2009
-esVersionMap.set(5, {
+esVersionsByEdition.set(5, {
     version: 'ES5',
@@ -54,3 +58,3 @@ ratified: new Date('2009-12-01'),
 for (let year = 2015, edition = 6; year <= now.getFullYear(); year++, edition++) {
-    esVersionMap.set(edition, {
+    esVersionsByEdition.set(edition, {
         version: `ES${year}`,
@@ -61,9 +65,34 @@ ratified: new Date(`${year}-06-01`),
 }
-// Premake as an array
-const esVersionList = Array.from(esVersionMap.values());
 /**
- * Get all the ECMAScript versions that have been ratified by the datetime.
+ * ECMAScript version information as an array.
  * Sorted from oldest first to most recent last.
  */
-export function getESVersionsInformation(when = now) {
+const esVersionList = Array.from(esVersionsByEdition.values());
+/**
+ * ECMAScript version information mapped by the version identifier.
+ * Sorted from oldest first to most recent last.
+ */
+const esVersionsByVersion = new Map(esVersionList.map((v) => [v.version, v]));
+// ------------------------------------
+// By Version
+/** Get the associated ECMAScript version information for the version identifier. */
+export function getESVersionInformationByVersion(version) {
+    if (esVersionsByVersion.has(version))
+        return esVersionsByVersion.get(version);
+    throw new Error(`ECMAScript version was not found: ${version}`);
+}
+/**
+ * Get all the associated ECMAScript version information for the version identifiers.
+ * Sorted from oldest first to most recent last.
+ */
+export function getESVersionsInformationByVersion(versions) {
+    return versions.map((version) => getESVersionInformationByVersion(version));
+}
+// ------------------------------------
+// By Date
+/**
+ * Get all the ECMAScript versions that have been ratified by the specified datetime.
+ * Sorted from oldest first to most recent last.
+ */
+export function getESVersionsInformationByDate(when) {
     const time = when.getTime();
@@ -76,19 +105,45 @@ const results = esVersionList.filter((meta) => time >= meta.ratified.getTime());
 /**
- * Get all the ECMAScript versions that have been ratified by the datetime.
+ * Get all the ECMAScript versions that have been ratified by the specified datetime.
  * Sorted from oldest first to most recent last.
  */
-export function getESVersions(when = now) {
-    return getESVersionsInformation(when).map((meta) => meta.version);
+export function getESVersionsByDate(when) {
+    return getESVersionsInformationByDate(when).map((meta) => meta.version);
 }
-/** Get the latest ECMAScript version details that was the ratified by the datetime. */
-export function getESVersionInformation(when = now) {
-    return getESVersionsInformation(when).slice(-1)[0];
+/** Get the latest ECMAScript version information that was the ratified by the specified datetime. */
+export function getESVersionInformationByDate(when) {
+    return getESVersionsInformationByDate(when).slice(-1)[0];
 }
-/** Get the latest ECMAScript version that has been ratified by the datetime. */
-export function getESVersion(when = now) {
-    return getESVersionInformation(when).version;
+/** Get the latest ECMAScript version that has been ratified by the specified datetime. */
+export function getESVersionByDate(when = now) {
+    return getESVersionInformationByDate(when).version;
 }
-/** Get the ECMAScript version details by the edition number. */
+// ------------------------------------
+// By Now
+/**
+ * Get all the ECMAScript versions that have been ratified by the current datetime, or {@link datetime}.
+ * Sorted from oldest first to most recent last.
+ */
+export function getESVersionsInformationByNow() {
+    return getESVersionsInformationByDate(now);
+}
+/**
+ * Get all the ECMAScript versions that have been ratified by the current datetime, or {@link datetime}.
+ * Sorted from oldest first to most recent last.
+ */
+export function getESVersionsByNow() {
+    return getESVersionsByDate(now);
+}
+/** Get the latest ECMAScript version information that was the ratified by the current datetime, or {@link datetime}. */
+export function getESVersionInformationByNow() {
+    return getESVersionInformationByDate(now);
+}
+/** Get the latest ECMAScript version that has been ratified by the current datetime, or {@link datetime}. */
+export function getESVersionByNow() {
+    return getESVersionByDate(now);
+}
+// ------------------------------------
+// By Edition
+/** Get the ECMAScript version information by the edition number. */
 export function getESVersionInformationByEdition(edition) {
-    const meta = esVersionMap.get(edition);
+    const meta = esVersionsByEdition.get(edition);
     if (meta)
@@ -95,0 +150,0 @@ return meta;

edition-es2020/index.js

 "use strict";
 Object.defineProperty(exports, "__esModule", { value: true });
-exports.getESVersionByEdition = exports.getESVersionInformationByEdition = exports.getESVersion = exports.getESVersionInformation = exports.getESVersions = exports.getESVersionsInformation = exports.getDateWithYearOffset = exports.datetime = void 0;
+exports.getESVersionByEdition = exports.getESVersionInformationByEdition = exports.getESVersionByNow = exports.getESVersionInformationByNow = exports.getESVersionsByNow = exports.getESVersionsInformationByNow = exports.getESVersionByDate = exports.getESVersionInformationByDate = exports.getESVersionsByDate = exports.getESVersionsInformationByDate = exports.getESVersionsInformationByVersion = exports.getESVersionInformationByVersion = exports.getDateWithYearOffset = exports.datetime = void 0;
 /**
@@ -26,5 +26,9 @@ * The datetime to use by default.
 exports.getDateWithYearOffset = getDateWithYearOffset;
-const esVersionMap = new Map();
+/**
+ * ECMAScript version information mapped by the edition number.
+ * Sorted from oldest first to most recent last.
+ */
+const esVersionsByEdition = new Map();
 // June 1997
-esVersionMap.set(1, {
+esVersionsByEdition.set(1, {
     version: 'ES1',
@@ -35,3 +39,3 @@ ratified: new Date('1997-06-01'),
 // June 1998
-esVersionMap.set(2, {
+esVersionsByEdition.set(2, {
     version: 'ES2',
@@ -42,3 +46,3 @@ ratified: new Date('1998-06-01'),
 // December 1999
-esVersionMap.set(3, {
+esVersionsByEdition.set(3, {
     version: 'ES3',
@@ -50,3 +54,3 @@ ratified: new Date('1999-12-01'),
 // December 2009
-esVersionMap.set(5, {
+esVersionsByEdition.set(5, {
     version: 'ES5',
@@ -59,3 +63,3 @@ ratified: new Date('2009-12-01'),
 for (let year = 2015, edition = 6; year <= now.getFullYear(); year++, edition++) {
-    esVersionMap.set(edition, {
+    esVersionsByEdition.set(edition, {
         version: `ES${year}`,
@@ -66,9 +70,36 @@ ratified: new Date(`${year}-06-01`),
 }
-// Premake as an array
-const esVersionList = Array.from(esVersionMap.values());
 /**
- * Get all the ECMAScript versions that have been ratified by the datetime.
+ * ECMAScript version information as an array.
  * Sorted from oldest first to most recent last.
  */
-function getESVersionsInformation(when = now) {
+const esVersionList = Array.from(esVersionsByEdition.values());
+/**
+ * ECMAScript version information mapped by the version identifier.
+ * Sorted from oldest first to most recent last.
+ */
+const esVersionsByVersion = new Map(esVersionList.map((v) => [v.version, v]));
+// ------------------------------------
+// By Version
+/** Get the associated ECMAScript version information for the version identifier. */
+function getESVersionInformationByVersion(version) {
+    if (esVersionsByVersion.has(version))
+        return esVersionsByVersion.get(version);
+    throw new Error(`ECMAScript version was not found: ${version}`);
+}
+exports.getESVersionInformationByVersion = getESVersionInformationByVersion;
+/**
+ * Get all the associated ECMAScript version information for the version identifiers.
+ * Sorted from oldest first to most recent last.
+ */
+function getESVersionsInformationByVersion(versions) {
+    return versions.map((version) => getESVersionInformationByVersion(version));
+}
+exports.getESVersionsInformationByVersion = getESVersionsInformationByVersion;
+// ------------------------------------
+// By Date
+/**
+ * Get all the ECMAScript versions that have been ratified by the specified datetime.
+ * Sorted from oldest first to most recent last.
+ */
+function getESVersionsInformationByDate(when) {
     const time = when.getTime();
@@ -80,24 +111,54 @@ const results = esVersionList.filter((meta) => time >= meta.ratified.getTime());
 }
-exports.getESVersionsInformation = getESVersionsInformation;
+exports.getESVersionsInformationByDate = getESVersionsInformationByDate;
 /**
- * Get all the ECMAScript versions that have been ratified by the datetime.
+ * Get all the ECMAScript versions that have been ratified by the specified datetime.
  * Sorted from oldest first to most recent last.
  */
-function getESVersions(when = now) {
-    return getESVersionsInformation(when).map((meta) => meta.version);
+function getESVersionsByDate(when) {
+    return getESVersionsInformationByDate(when).map((meta) => meta.version);
 }
-exports.getESVersions = getESVersions;
-/** Get the latest ECMAScript version details that was the ratified by the datetime. */
-function getESVersionInformation(when = now) {
-    return getESVersionsInformation(when).slice(-1)[0];
+exports.getESVersionsByDate = getESVersionsByDate;
+/** Get the latest ECMAScript version information that was the ratified by the specified datetime. */
+function getESVersionInformationByDate(when) {
+    return getESVersionsInformationByDate(when).slice(-1)[0];
 }
-exports.getESVersionInformation = getESVersionInformation;
-/** Get the latest ECMAScript version that has been ratified by the datetime. */
-function getESVersion(when = now) {
-    return getESVersionInformation(when).version;
+exports.getESVersionInformationByDate = getESVersionInformationByDate;
+/** Get the latest ECMAScript version that has been ratified by the specified datetime. */
+function getESVersionByDate(when = now) {
+    return getESVersionInformationByDate(when).version;
 }
-exports.getESVersion = getESVersion;
-/** Get the ECMAScript version details by the edition number. */
+exports.getESVersionByDate = getESVersionByDate;
+// ------------------------------------
+// By Now
+/**
+ * Get all the ECMAScript versions that have been ratified by the current datetime, or {@link datetime}.
+ * Sorted from oldest first to most recent last.
+ */
+function getESVersionsInformationByNow() {
+    return getESVersionsInformationByDate(now);
+}
+exports.getESVersionsInformationByNow = getESVersionsInformationByNow;
+/**
+ * Get all the ECMAScript versions that have been ratified by the current datetime, or {@link datetime}.
+ * Sorted from oldest first to most recent last.
+ */
+function getESVersionsByNow() {
+    return getESVersionsByDate(now);
+}
+exports.getESVersionsByNow = getESVersionsByNow;
+/** Get the latest ECMAScript version information that was the ratified by the current datetime, or {@link datetime}. */
+function getESVersionInformationByNow() {
+    return getESVersionInformationByDate(now);
+}
+exports.getESVersionInformationByNow = getESVersionInformationByNow;
+/** Get the latest ECMAScript version that has been ratified by the current datetime, or {@link datetime}. */
+function getESVersionByNow() {
+    return getESVersionByDate(now);
+}
+exports.getESVersionByNow = getESVersionByNow;
+// ------------------------------------
+// By Edition
+/** Get the ECMAScript version information by the edition number. */
 function getESVersionInformationByEdition(edition) {
-    const meta = esVersionMap.get(edition);
+    const meta = esVersionsByEdition.get(edition);
     if (meta)
@@ -104,0 +165,0 @@ return meta;

HISTORY.md

 # History
 
+## v3.0.0 2021 July 27
+
+-   Fetching by what criteria is now explicit
+-   Added the ability to fetch information by the version identifier
+
 ## v2.0.1 2021 July 27
@@ -4,0 +9,0 @@

package.json

 {
   "name": "@bevry/ecmascript-versions",
-  "version": "2.0.1",
+  "version": "3.0.0-next.1627394229.5637b89385b3fc7aa4e821a9e1a5189a392fe60c",
   "description": "Get all ECMAScript versions, or the ECMAScript version that was ratified on a specific date.",
@@ -5,0 +5,0 @@ "homepage": "https://github.com/bevry/es-versions",

README.md

@@ -42,16 +42,23 @@ <!-- TITLE/ -->
 import {
-    getESVersion,
-    getESVersions,
-    getDateWithYearOffset,
+    getESVersionInformationByVersion,
+    getESVersionByNow,
+    getESVersionByDate,
+    getESVersionsByNow,
 } from '@bevry/ecmascript-versions'
 // results for 2020-11-03
 
+// get the ratification date for an ECMAScript version
+console.log(getESVersionInformationByVersion('ES2020').ratified) // 2020-06-01T00:00:00.000Z
+
+// get the edition number for an ECMAScript version
+console.log(getESVersionInformationByVersion('ES2020').edition) // 11
+
 // get the latest ECMAScript version that was ratified by current date
-console.log(getESVersion()) // ES2020
+console.log(getESVersionByNow()) // ES2020
 
 // get the latest ECMAScript version that was ratified by this time last year
-console.log(getESVersion(getDateWithYearOffset(-1))) // ES2019
+console.log(getESVersionByDate(getDateWithYearOffset(-1))) // ES2019
 
 // get all the latest ECMAScript versions that were ratified so far
-console.log(getESVersions()) /* [
+console.log(getESVersionsByNow()) /* [
     'ES1',
@@ -85,3 +92,3 @@ 'ES2',
 <script type="module">
-    import * as pkg from '//cdn.skypack.dev/@bevry/ecmascript-versions@^2.0.1'
+    import * as pkg from '//cdn.skypack.dev/@bevry/ecmascript-versions@^3.0.0'
 </script>
@@ -94,3 +101,3 @@ ```
 <script type="module">
-    import * as pkg from '//unpkg.com/@bevry/ecmascript-versions@^2.0.1'
+    import * as pkg from '//unpkg.com/@bevry/ecmascript-versions@^3.0.0'
 </script>
@@ -103,3 +110,3 @@ ```
 <script type="module">
-    import * as pkg from '//dev.jspm.io/@bevry/ecmascript-versions@2.0.1'
+    import * as pkg from '//dev.jspm.io/@bevry/ecmascript-versions@3.0.0'
 </script>
@@ -106,0 +113,0 @@ ```

source/index.ts

@@ -31,3 +31,4 @@ /**
 /**
- * All the details about an ECMAScript edition/version.
+ * All the information about an ECMAScript edition/version.
+ * https://en.wikipedia.org/wiki/ECMAScript#Versions
  */
@@ -41,11 +42,8 @@ export type ESVersionInformation = {
 /**
- * The mapping of an ECMAScript edition number to its information.
+ * ECMAScript version information mapped by the edition number.
  * Sorted from oldest first to most recent last.
- * https://en.wikipedia.org/wiki/ECMAScript#Versions
  */
-export type ESVersionMap = Map<Number, ESVersionInformation>
-
-const esVersionMap: ESVersionMap = new Map()
+const esVersionsByEdition: Map<Number, ESVersionInformation> = new Map()
 // June 1997
-esVersionMap.set(1, {
+esVersionsByEdition.set(1, {
 	version: 'ES1',
@@ -56,3 +54,3 @@ ratified: new Date('1997-06-01'),
 // June 1998
-esVersionMap.set(2, {
+esVersionsByEdition.set(2, {
 	version: 'ES2',
@@ -63,3 +61,3 @@ ratified: new Date('1998-06-01'),
 // December 1999
-esVersionMap.set(3, {
+esVersionsByEdition.set(3, {
 	version: 'ES3',
@@ -71,3 +69,3 @@ ratified: new Date('1999-12-01'),
 // December 2009
-esVersionMap.set(5, {
+esVersionsByEdition.set(5, {
 	version: 'ES5',
@@ -84,3 +82,3 @@ ratified: new Date('2009-12-01'),
 ) {
-	esVersionMap.set(edition, {
+	esVersionsByEdition.set(edition, {
 		version: `ES${year}`,
@@ -92,12 +90,46 @@ ratified: new Date(`${year}-06-01`),
 
-// Premake as an array
-const esVersionList = Array.from(esVersionMap.values())
+/**
+ * ECMAScript version information as an array.
+ * Sorted from oldest first to most recent last.
+ */
+const esVersionList = Array.from(esVersionsByEdition.values())
 
 /**
- * Get all the ECMAScript versions that have been ratified by the datetime.
+ * ECMAScript version information mapped by the version identifier.
  * Sorted from oldest first to most recent last.
  */
-export function getESVersionsInformation(
-	when: Date = now
+const esVersionsByVersion: Map<ESVersionIdentifier, ESVersionInformation> =
+	new Map(esVersionList.map((v) => [v.version, v]))
+
+// ------------------------------------
+// By Version
+
+/** Get the associated ECMAScript version information for the version identifier. */
+export function getESVersionInformationByVersion(
+	version: ESVersionIdentifier
+): ESVersionInformation {
+	if (esVersionsByVersion.has(version)) return esVersionsByVersion.get(version)!
+	throw new Error(`ECMAScript version was not found: ${version}`)
+}
+
+/**
+ * Get all the associated ECMAScript version information for the version identifiers.
+ * Sorted from oldest first to most recent last.
+ */
+export function getESVersionsInformationByVersion(
+	versions: Array<ESVersionIdentifier>
 ): Array<ESVersionInformation> {
+	return versions.map((version) => getESVersionInformationByVersion(version))
+}
+
+// ------------------------------------
+// By Date
+
+/**
+ * Get all the ECMAScript versions that have been ratified by the specified datetime.
+ * Sorted from oldest first to most recent last.
+ */
+export function getESVersionsInformationByDate(
+	when: Date
+): Array<ESVersionInformation> {
 	const time = when.getTime()
@@ -112,26 +144,58 @@ const results = esVersionList.filter(
 /**
- * Get all the ECMAScript versions that have been ratified by the datetime.
+ * Get all the ECMAScript versions that have been ratified by the specified datetime.
  * Sorted from oldest first to most recent last.
  */
-export function getESVersions(when: Date = now): Array<ESVersionIdentifier> {
-	return getESVersionsInformation(when).map((meta) => meta.version)
+export function getESVersionsByDate(when: Date): Array<ESVersionIdentifier> {
+	return getESVersionsInformationByDate(when).map((meta) => meta.version)
 }
 
-/** Get the latest ECMAScript version details that was the ratified by the datetime. */
-export function getESVersionInformation(
-	when: Date = now
+/** Get the latest ECMAScript version information that was the ratified by the specified datetime. */
+export function getESVersionInformationByDate(
+	when: Date
 ): ESVersionInformation {
-	return getESVersionsInformation(when).slice(-1)[0]
+	return getESVersionsInformationByDate(when).slice(-1)[0]
 }
 
-/** Get the latest ECMAScript version that has been ratified by the datetime. */
-export function getESVersion(when: Date = now): string {
-	return getESVersionInformation(when).version
+/** Get the latest ECMAScript version that has been ratified by the specified datetime. */
+export function getESVersionByDate(when: Date = now): string {
+	return getESVersionInformationByDate(when).version
 }
 
-/** Get the ECMAScript version details by the edition number. */
+// ------------------------------------
+// By Now
+
+/**
+ * Get all the ECMAScript versions that have been ratified by the current datetime, or {@link datetime}.
+ * Sorted from oldest first to most recent last.
+ */
+export function getESVersionsInformationByNow() {
+	return getESVersionsInformationByDate(now)
+}
+
+/**
+ * Get all the ECMAScript versions that have been ratified by the current datetime, or {@link datetime}.
+ * Sorted from oldest first to most recent last.
+ */
+export function getESVersionsByNow() {
+	return getESVersionsByDate(now)
+}
+
+/** Get the latest ECMAScript version information that was the ratified by the current datetime, or {@link datetime}. */
+export function getESVersionInformationByNow(): ESVersionInformation {
+	return getESVersionInformationByDate(now)
+}
+
+/** Get the latest ECMAScript version that has been ratified by the current datetime, or {@link datetime}. */
+export function getESVersionByNow(): string {
+	return getESVersionByDate(now)
+}
+
+// ------------------------------------
+// By Edition
+
+/** Get the ECMAScript version information by the edition number. */
 export function getESVersionInformationByEdition(
 	edition: Number
 ): ESVersionInformation {
-	const meta = esVersionMap.get(edition)
+	const meta = esVersionsByEdition.get(edition)
 	if (meta) return meta
@@ -138,0 +202,0 @@ throw new Error(`ECMAScript does not have the edition ${edition}`)

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