deno.land / x / esm@v135_2 / packages / esm-compat / src / compat.ts
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type Version = [number, number, number];
/** possible targets */export const targets = new Set([ "es2015", "es2016", "es2017", "es2018", "es2019", "es2020", "es2021", "es2022", "esnext", "deno", "denonext", "node",]);
/** the js table transpiled from https://github.com/evanw/esbuild/blob/main/internal/compat/js_table.go */const jsTable: Record<string, Record<string, Version>> = { ArbitraryModuleNamespaceNames: { Chrome: [90, 0, 0], ES: [2022, 0, 0], Firefox: [87, 0, 0], IOS: [14, 5, 0], Node: [16, 0, 0], Safari: [14, 1, 0], }, ArraySpread: { // Note: The latest version of "IE" failed 15 tests including: spread syntax for iterable objects: spreading non-iterables is a runtime error // Note: The latest version of "Rhino" failed 15 tests including: spread syntax for iterable objects: spreading non-iterables is a runtime error Chrome: [46, 0, 0], Deno: [1, 0, 0], Edge: [13, 0, 0], ES: [2015, 0, 0], Firefox: [36, 0, 0], Hermes: [0, 7, 0], IOS: [10, 0, 0], Node: [5, 0, 0], Opera: [33, 0, 0], Safari: [10, 0, 0], }, Arrow: { // Note: The latest version of "Hermes" failed 3 tests including: arrow functions: lexical "super" binding in constructors // Note: The latest version of "IE" failed 13 tests including: arrow functions: "this" unchanged by call or apply // Note: The latest version of "Rhino" failed 3 tests including: arrow functions: lexical "new.target" binding Chrome: [49, 0, 0], Deno: [1, 0, 0], Edge: [13, 0, 0], ES: [2015, 0, 0], Firefox: [45, 0, 0], IOS: [10, 0, 0], Node: [6, 0, 0], Opera: [36, 0, 0], Safari: [10, 0, 0], }, AsyncAwait: { // Note: The latest version of "Hermes" failed 4 tests including: async functions: async arrow functions // Note: The latest version of "IE" failed 16 tests including: async functions: async arrow functions // Note: The latest version of "Rhino" failed 16 tests including: async functions: async arrow functions Chrome: [55, 0, 0], Deno: [1, 0, 0], Edge: [15, 0, 0], ES: [2017, 0, 0], Firefox: [52, 0, 0], IOS: [11, 0, 0], Node: [7, 6, 0], Opera: [42, 0, 0], Safari: [11, 0, 0], }, AsyncGenerator: { // Note: The latest version of "Hermes" failed this test: Asynchronous Iterators: async generators // Note: The latest version of "IE" failed this test: Asynchronous Iterators: async generators // Note: The latest version of "Rhino" failed this test: Asynchronous Iterators: async generators Chrome: [63, 0, 0], Deno: [1, 0, 0], Edge: [79, 0, 0], ES: [2018, 0, 0], Firefox: [57, 0, 0], IOS: [12, 0, 0], Node: [10, 0, 0], Opera: [50, 0, 0], Safari: [12, 0, 0], }, Bigint: { // Note: The latest version of "IE" failed this test: BigInt: basic functionality Chrome: [67, 0, 0], Deno: [1, 0, 0], Edge: [79, 0, 0], ES: [2020, 0, 0], Firefox: [68, 0, 0], Hermes: [0, 12, 0], IOS: [14, 0, 0], Node: [10, 4, 0], Opera: [54, 0, 0], Rhino: [1, 7, 14], Safari: [14, 0, 0], }, Class: { // Note: The latest version of "Hermes" failed 24 tests including: class: accessor properties // Note: The latest version of "IE" failed 24 tests including: class: accessor properties // Note: The latest version of "Rhino" failed 24 tests including: class: accessor properties Chrome: [49, 0, 0], Deno: [1, 0, 0], Edge: [13, 0, 0], ES: [2015, 0, 0], Firefox: [45, 0, 0], IOS: [10, 0, 0], Node: [6, 0, 0], Opera: [36, 0, 0], Safari: [10, 0, 0], }, ClassField: { // Note: The latest version of "Hermes" failed 2 tests including: instance class fields: computed instance class fields // Note: The latest version of "IE" failed 2 tests including: instance class fields: computed instance class fields // Note: The latest version of "Rhino" failed 2 tests including: instance class fields: computed instance class fields Chrome: [73, 0, 0], Deno: [1, 0, 0], Edge: [79, 0, 0], ES: [2022, 0, 0], Firefox: [69, 0, 0], IOS: [14, 0, 0], Node: [12, 0, 0], Opera: [60, 0, 0], Safari: [14, 0, 0], }, ClassPrivateAccessor: { // Note: The latest version of "Hermes" failed this test: private class methods: private accessor properties // Note: The latest version of "IE" failed this test: private class methods: private accessor properties // Note: The latest version of "Rhino" failed this test: private class methods: private accessor properties Chrome: [84, 0, 0], Deno: [1, 0, 0], Edge: [84, 0, 0], ES: [2022, 0, 0], Firefox: [90, 0, 0], IOS: [15, 0, 0], Node: [14, 6, 0], Opera: [70, 0, 0], Safari: [15, 0, 0], }, ClassPrivateBrandCheck: { // Note: The latest version of "Hermes" failed this test: Ergonomic brand checks for private fields // Note: The latest version of "IE" failed this test: Ergonomic brand checks for private fields // Note: The latest version of "Rhino" failed this test: Ergonomic brand checks for private fields Chrome: [91, 0, 0], Deno: [1, 9, 0], Edge: [91, 0, 0], ES: [2022, 0, 0], Firefox: [90, 0, 0], IOS: [15, 0, 0], Node: [16, 4, 0], Opera: [77, 0, 0], Safari: [15, 0, 0], }, ClassPrivateField: { // Note: The latest version of "Hermes" failed 4 tests including: instance class fields: optional deep private instance class fields access // Note: The latest version of "IE" failed 4 tests including: instance class fields: optional deep private instance class fields access // Note: The latest version of "Rhino" failed 4 tests including: instance class fields: optional deep private instance class fields access Chrome: [84, 0, 0], Deno: [1, 0, 0], Edge: [84, 0, 0], ES: [2022, 0, 0], Firefox: [90, 0, 0], IOS: [14, 5, 0], Node: [14, 6, 0], Opera: [70, 0, 0], Safari: [14, 1, 0], }, ClassPrivateMethod: { // Note: The latest version of "Hermes" failed this test: private class methods: private instance methods // Note: The latest version of "IE" failed this test: private class methods: private instance methods // Note: The latest version of "Rhino" failed this test: private class methods: private instance methods Chrome: [84, 0, 0], Deno: [1, 0, 0], Edge: [84, 0, 0], ES: [2022, 0, 0], Firefox: [90, 0, 0], IOS: [15, 0, 0], Node: [14, 6, 0], Opera: [70, 0, 0], Safari: [15, 0, 0], }, ClassPrivateStaticAccessor: { // Note: The latest version of "Hermes" failed this test: private class methods: private static accessor properties // Note: The latest version of "IE" failed this test: private class methods: private static accessor properties // Note: The latest version of "Rhino" failed this test: private class methods: private static accessor properties Chrome: [84, 0, 0], Deno: [1, 0, 0], Edge: [84, 0, 0], ES: [2022, 0, 0], Firefox: [90, 0, 0], IOS: [15, 0, 0], Node: [14, 6, 0], Opera: [70, 0, 0], Safari: [15, 0, 0], }, ClassPrivateStaticField: { // Note: The latest version of "Hermes" failed this test: static class fields: private static class fields // Note: The latest version of "IE" failed this test: static class fields: private static class fields // Note: The latest version of "Rhino" failed this test: static class fields: private static class fields Chrome: [74, 0, 0], Deno: [1, 0, 0], Edge: [79, 0, 0], ES: [2022, 0, 0], Firefox: [90, 0, 0], IOS: [14, 5, 0], Node: [12, 0, 0], Opera: [62, 0, 0], Safari: [14, 1, 0], }, ClassPrivateStaticMethod: { // Note: The latest version of "Hermes" failed this test: private class methods: private static methods // Note: The latest version of "IE" failed this test: private class methods: private static methods // Note: The latest version of "Rhino" failed this test: private class methods: private static methods Chrome: [84, 0, 0], Deno: [1, 0, 0], Edge: [84, 0, 0], ES: [2022, 0, 0], Firefox: [90, 0, 0], IOS: [15, 0, 0], Node: [14, 6, 0], Opera: [70, 0, 0], Safari: [15, 0, 0], }, ClassStaticBlocks: { Chrome: [91, 0, 0], Deno: [1, 14, 0], Edge: [94, 0, 0], ES: [2022, 0, 0], Firefox: [93, 0, 0], IOS: [16, 4, 0], Node: [16, 11, 0], Opera: [80, 0, 0], Safari: [16, 4, 0], }, ClassStaticField: { // Note: The latest version of "Hermes" failed 2 tests including: static class fields: computed static class fields // Note: The latest version of "IE" failed 2 tests including: static class fields: computed static class fields // Note: The latest version of "Rhino" failed 2 tests including: static class fields: computed static class fields Chrome: [73, 0, 0], Deno: [1, 0, 0], Edge: [79, 0, 0], ES: [2022, 0, 0], Firefox: [75, 0, 0], IOS: [14, 5, 0], Node: [12, 0, 0], Opera: [60, 0, 0], Safari: [14, 1, 0], }, ConstAndLet: { // Note: The latest version of "Hermes" failed 20 tests including: const: for loop statement scope // Note: The latest version of "IE" failed 6 tests including: const: for-in loop iteration scope // Note: The latest version of "Rhino" failed 22 tests including: const: cannot be in statements Chrome: [49, 0, 0], Deno: [1, 0, 0], Edge: [14, 0, 0], ES: [2015, 0, 0], Firefox: [51, 0, 0], IOS: [11, 0, 0], Node: [6, 0, 0], Opera: [36, 0, 0], Safari: [11, 0, 0], }, Decorators: {}, DefaultArgument: { // Note: The latest version of "Hermes" failed 2 tests including: default function parameters: separate scope // Note: The latest version of "IE" failed 7 tests including: default function parameters: arguments object interaction // Note: The latest version of "Rhino" failed 7 tests including: default function parameters: arguments object interaction Chrome: [49, 0, 0], Deno: [1, 0, 0], Edge: [14, 0, 0], ES: [2015, 0, 0], Firefox: [53, 0, 0], IOS: [10, 0, 0], Node: [6, 0, 0], Opera: [36, 0, 0], Safari: [10, 0, 0], }, Destructuring: { // Note: The latest version of "Hermes" failed 3 tests including: destructuring, declarations: defaults, let temporal dead zone // Note: The latest version of "IE" failed 71 tests including: destructuring, assignment: chained iterable destructuring // Note: The latest version of "Rhino" failed 33 tests including: destructuring, assignment: computed properties Chrome: [51, 0, 0], Deno: [1, 0, 0], Edge: [18, 0, 0], ES: [2015, 0, 0], Firefox: [53, 0, 0], IOS: [10, 0, 0], Node: [6, 5, 0], Opera: [38, 0, 0], Safari: [10, 0, 0], }, DynamicImport: { Chrome: [63, 0, 0], Edge: [79, 0, 0], ES: [2015, 0, 0], Firefox: [67, 0, 0], IOS: [11, 0, 0], Node: [13, 2, 0], Opera: [50, 0, 0], Safari: [11, 1, 0], }, ExponentOperator: { // Note: The latest version of "IE" failed 3 tests including: exponentiation (**) operator: assignment Chrome: [52, 0, 0], Deno: [1, 0, 0], Edge: [14, 0, 0], ES: [2016, 0, 0], Firefox: [52, 0, 0], Hermes: [0, 7, 0], IOS: [10, 3, 0], Node: [7, 0, 0], Opera: [39, 0, 0], Rhino: [1, 7, 14], Safari: [10, 1, 0], }, ExportStarAs: { Chrome: [72, 0, 0], Deno: [1, 0, 0], Edge: [79, 0, 0], ES: [2020, 0, 0], Firefox: [80, 0, 0], IOS: [14, 5, 0], Node: [13, 2, 0], Opera: [60, 0, 0], Safari: [14, 1, 0], }, ForAwait: { // Note: The latest version of "Hermes" failed this test: Asynchronous Iterators: for-await-of loops // Note: The latest version of "IE" failed this test: Asynchronous Iterators: for-await-of loops // Note: The latest version of "Rhino" failed this test: Asynchronous Iterators: for-await-of loops Chrome: [63, 0, 0], Deno: [1, 0, 0], Edge: [79, 0, 0], ES: [2018, 0, 0], Firefox: [57, 0, 0], IOS: [12, 0, 0], Node: [10, 0, 0], Opera: [50, 0, 0], Safari: [12, 0, 0], }, ForOf: { // Note: The latest version of "IE" failed 9 tests including: for..of loops: iterator closing, break // Note: The latest version of "Rhino" failed 4 tests including: for..of loops: iterator closing, break Chrome: [51, 0, 0], Deno: [1, 0, 0], Edge: [15, 0, 0], ES: [2015, 0, 0], Firefox: [53, 0, 0], Hermes: [0, 7, 0], IOS: [10, 0, 0], Node: [6, 5, 0], Opera: [38, 0, 0], Safari: [10, 0, 0], }, FunctionNameConfigurable: { // Note: The latest version of "IE" failed this test: function "name" property: isn't writable, is configurable // Note: The latest version of "Rhino" failed this test: function "name" property: isn't writable, is configurable Chrome: [43, 0, 0], Deno: [1, 0, 0], Edge: [12, 0, 0], ES: [2015, 0, 0], Firefox: [38, 0, 0], Hermes: [0, 7, 0], IOS: [10, 0, 0], Node: [4, 0, 0], Opera: [30, 0, 0], Safari: [10, 0, 0], }, FunctionOrClassPropertyAccess: { Chrome: [0, 0, 0], Deno: [0, 0, 0], Edge: [0, 0, 0], ES: [0, 0, 0], Firefox: [0, 0, 0], Hermes: [0, 0, 0], IE: [0, 0, 0], IOS: [0, 0, 0], Node: [0, 0, 0], Opera: [0, 0, 0], Rhino: [0, 0, 0], Safari: [16, 3, 0], }, Generator: { // Note: The latest version of "Hermes" failed 3 tests including: generators: computed shorthand generators, classes // Note: The latest version of "IE" failed 27 tests including: generators: %GeneratorPrototype% // Note: The latest version of "Rhino" failed 15 tests including: generators: %GeneratorPrototype% Chrome: [50, 0, 0], Deno: [1, 0, 0], Edge: [13, 0, 0], ES: [2015, 0, 0], Firefox: [53, 0, 0], IOS: [10, 0, 0], Node: [6, 0, 0], Opera: [37, 0, 0], Safari: [10, 0, 0], }, Hashbang: { // Note: The latest version of "IE" failed this test: Hashbang Grammar // Note: The latest version of "Rhino" failed this test: Hashbang Grammar Chrome: [74, 0, 0], Deno: [1, 0, 0], Edge: [79, 0, 0], Firefox: [67, 0, 0], Hermes: [0, 7, 0], IOS: [13, 4, 0], Node: [12, 5, 0], Opera: [62, 0, 0], Safari: [13, 1, 0], }, ImportAssertions: { Chrome: [91, 0, 0], Deno: [1, 17, 0], Edge: [91, 0, 0], Node: [16, 14, 0], }, ImportAttributes: { Deno: [1, 37, 0], Node: [20, 10, 0], }, ImportMeta: { Chrome: [64, 0, 0], Deno: [1, 0, 0], Edge: [79, 0, 0], ES: [2020, 0, 0], Firefox: [62, 0, 0], IOS: [12, 0, 0], Node: [10, 4, 0], Opera: [51, 0, 0], Safari: [11, 1, 0], }, InlineScript: {}, LogicalAssignment: { // Note: The latest version of "IE" failed 9 tests including: Logical Assignment: &&= basic support // Note: The latest version of "Rhino" failed 9 tests including: Logical Assignment: &&= basic support Chrome: [85, 0, 0], Deno: [1, 2, 0], Edge: [85, 0, 0], ES: [2021, 0, 0], Firefox: [79, 0, 0], Hermes: [0, 7, 0], IOS: [14, 0, 0], Node: [15, 0, 0], Opera: [71, 0, 0], Safari: [14, 0, 0], }, NestedRestBinding: { // Note: The latest version of "IE" failed 2 tests including: nested rest destructuring, declarations // Note: The latest version of "Rhino" failed 2 tests including: nested rest destructuring, declarations Chrome: [49, 0, 0], Deno: [1, 0, 0], Edge: [14, 0, 0], ES: [2016, 0, 0], Firefox: [47, 0, 0], Hermes: [0, 7, 0], IOS: [10, 3, 0], Node: [6, 0, 0], Opera: [36, 0, 0], Safari: [10, 1, 0], }, NewTarget: { // Note: The latest version of "IE" failed 2 tests including: new.target: assignment is an early error // Note: The latest version of "Rhino" failed 2 tests including: new.target: assignment is an early error Chrome: [46, 0, 0], Deno: [1, 0, 0], Edge: [14, 0, 0], ES: [2015, 0, 0], Firefox: [41, 0, 0], Hermes: [0, 7, 0], IOS: [10, 0, 0], Node: [5, 0, 0], Opera: [33, 0, 0], Safari: [10, 0, 0], }, NodeColonPrefixImport: { Node: [14, 13, 1], }, NodeColonPrefixRequire: { Node: [16, 0, 0], }, NullishCoalescing: { // Note: The latest version of "IE" failed this test: nullish coalescing operator (??) // Note: The latest version of "Rhino" failed this test: nullish coalescing operator (??) Chrome: [80, 0, 0], Deno: [1, 0, 0], Edge: [80, 0, 0], ES: [2020, 0, 0], Firefox: [72, 0, 0], Hermes: [0, 7, 0], IOS: [13, 4, 0], Node: [14, 0, 0], Opera: [67, 0, 0], Safari: [13, 1, 0], }, ObjectAccessors: { Chrome: [5, 0, 0], Deno: [1, 0, 0], Edge: [12, 0, 0], ES: [5, 0, 0], Firefox: [2, 0, 0], Hermes: [0, 7, 0], IE: [9, 0, 0], IOS: [6, 0, 0], Node: [0, 4, 0], Opera: [10, 10, 0], Rhino: [1, 7, 13], Safari: [3, 1, 0], }, ObjectExtensions: { // Note: The latest version of "IE" failed 6 tests including: object literal extensions: computed accessors // Note: The latest version of "Rhino" failed 3 tests including: object literal extensions: computed accessors Chrome: [44, 0, 0], Deno: [1, 0, 0], Edge: [12, 0, 0], ES: [2015, 0, 0], Firefox: [34, 0, 0], Hermes: [0, 7, 0], IOS: [10, 0, 0], Node: [4, 0, 0], Opera: [31, 0, 0], Safari: [10, 0, 0], }, ObjectRestSpread: { // Note: The latest version of "IE" failed 2 tests including: object rest/spread properties: object rest properties // Note: The latest version of "Rhino" failed 2 tests including: object rest/spread properties: object rest properties Chrome: [60, 0, 0], Deno: [1, 0, 0], Edge: [79, 0, 0], ES: [2018, 0, 0], Firefox: [55, 0, 0], Hermes: [0, 7, 0], IOS: [11, 3, 0], Node: [8, 3, 0], Opera: [47, 0, 0], Safari: [11, 1, 0], }, OptionalCatchBinding: { // Note: The latest version of "IE" failed 3 tests including: optional catch binding: await // Note: The latest version of "Rhino" failed 3 tests including: optional catch binding: await Chrome: [66, 0, 0], Deno: [1, 0, 0], Edge: [79, 0, 0], ES: [2019, 0, 0], Firefox: [58, 0, 0], Hermes: [0, 12, 0], IOS: [11, 3, 0], Node: [10, 0, 0], Opera: [53, 0, 0], Safari: [11, 1, 0], }, OptionalChain: { // Note: The latest version of "IE" failed 5 tests including: optional chaining operator (?.): optional bracket access // Note: The latest version of "Rhino" failed 5 tests including: optional chaining operator (?.): optional bracket access Chrome: [91, 0, 0], Deno: [1, 9, 0], Edge: [91, 0, 0], ES: [2020, 0, 0], Firefox: [74, 0, 0], Hermes: [0, 12, 0], IOS: [13, 4, 0], Node: [16, 1, 0], Opera: [77, 0, 0], Safari: [13, 1, 0], }, RegexpDotAllFlag: { // Note: The latest version of "IE" failed this test: s (dotAll) flag for regular expressions // Note: The latest version of "Rhino" failed this test: s (dotAll) flag for regular expressions Chrome: [62, 0, 0], Deno: [1, 0, 0], Edge: [79, 0, 0], ES: [2018, 0, 0], Firefox: [78, 0, 0], Hermes: [0, 7, 0], IOS: [11, 3, 0], Node: [8, 10, 0], Opera: [49, 0, 0], Safari: [11, 1, 0], }, RegexpLookbehindAssertions: { // Note: The latest version of "IE" failed this test: RegExp Lookbehind Assertions // Note: The latest version of "Rhino" failed this test: RegExp Lookbehind Assertions Chrome: [62, 0, 0], Deno: [1, 0, 0], Edge: [79, 0, 0], ES: [2018, 0, 0], Firefox: [78, 0, 0], Hermes: [0, 7, 0], IOS: [16, 4, 0], Node: [8, 10, 0], Opera: [49, 0, 0], Safari: [16, 4, 0], }, RegexpMatchIndices: { Chrome: [90, 0, 0], Deno: [1, 8, 0], Edge: [90, 0, 0], ES: [2022, 0, 0], Firefox: [88, 0, 0], IOS: [15, 0, 0], Node: [16, 0, 0], Opera: [76, 0, 0], Safari: [15, 0, 0], }, RegexpNamedCaptureGroups: { // Note: The latest version of "Hermes" failed this test: RegExp named capture groups // Note: The latest version of "IE" failed this test: RegExp named capture groups // Note: The latest version of "Rhino" failed this test: RegExp named capture groups Chrome: [64, 0, 0], Deno: [1, 0, 0], Edge: [79, 0, 0], ES: [2018, 0, 0], Firefox: [78, 0, 0], IOS: [11, 3, 0], Node: [10, 0, 0], Opera: [51, 0, 0], Safari: [11, 1, 0], }, RegexpSetNotation: {}, RegexpStickyAndUnicodeFlags: { // Note: The latest version of "IE" failed 6 tests including: RegExp "y" and "u" flags: "u" flag // Note: The latest version of "Rhino" failed 6 tests including: RegExp "y" and "u" flags: "u" flag Chrome: [50, 0, 0], Deno: [1, 0, 0], Edge: [13, 0, 0], ES: [2015, 0, 0], Firefox: [46, 0, 0], Hermes: [0, 7, 0], IOS: [12, 0, 0], Node: [6, 0, 0], Opera: [37, 0, 0], Safari: [12, 0, 0], }, RegexpUnicodePropertyEscapes: { // Note: The latest version of "Chrome" failed this test: RegExp Unicode Property Escapes: Unicode 15.1 // Note: The latest version of "Firefox" failed this test: RegExp Unicode Property Escapes: Unicode 15.1 // Note: The latest version of "Hermes" failed 8 tests including: RegExp Unicode Property Escapes: Unicode 11 // Note: The latest version of "IE" failed 8 tests including: RegExp Unicode Property Escapes: Unicode 11 // Note: The latest version of "IOS" failed this test: RegExp Unicode Property Escapes: Unicode 15.1 // Note: The latest version of "Rhino" failed 8 tests including: RegExp Unicode Property Escapes: Unicode 11 // Note: The latest version of "Safari" failed this test: RegExp Unicode Property Escapes: Unicode 15.1 ES: [2018, 0, 0], Node: [21, 3, 0], }, RestArgument: { // Note: The latest version of "Hermes" failed this test: rest parameters: function 'length' property // Note: The latest version of "IE" failed 5 tests including: rest parameters: arguments object interaction // Note: The latest version of "Rhino" failed 5 tests including: rest parameters: arguments object interaction Chrome: [47, 0, 0], Deno: [1, 0, 0], Edge: [12, 0, 0], ES: [2015, 0, 0], Firefox: [43, 0, 0], IOS: [10, 0, 0], Node: [6, 0, 0], Opera: [34, 0, 0], Safari: [10, 0, 0], }, TemplateLiteral: { // Note: The latest version of "Hermes" failed this test: template literals: TemplateStrings call site caching // Note: The latest version of "IE" failed 7 tests including: template literals: TemplateStrings call site caching // Note: The latest version of "Rhino" failed 2 tests including: template literals: basic functionality Chrome: [41, 0, 0], Deno: [1, 0, 0], Edge: [13, 0, 0], ES: [2015, 0, 0], Firefox: [34, 0, 0], IOS: [13, 0, 0], Node: [10, 0, 0], Opera: [28, 0, 0], Safari: [13, 0, 0], }, TopLevelAwait: { Chrome: [89, 0, 0], Deno: [1, 0, 0], Edge: [89, 0, 0], ES: [2022, 0, 0], Firefox: [89, 0, 0], IOS: [15, 0, 0], Node: [14, 8, 0], Opera: [75, 0, 0], Safari: [15, 0, 0], }, TypeofExoticObjectIsObject: { Chrome: [0, 0, 0], Deno: [0, 0, 0], Edge: [0, 0, 0], ES: [2020, 0, 0], Firefox: [0, 0, 0], Hermes: [0, 0, 0], IOS: [0, 0, 0], Node: [0, 0, 0], Opera: [0, 0, 0], Rhino: [0, 0, 0], Safari: [0, 0, 0], }, UnicodeEscapes: { // Note: The latest version of "IE" failed 2 tests including: Unicode code point escapes: in identifiers // Note: The latest version of "Rhino" failed 4 tests including: Unicode code point escapes: in identifiers Chrome: [44, 0, 0], Deno: [1, 0, 0], Edge: [12, 0, 0], ES: [2015, 0, 0], Firefox: [53, 0, 0], Hermes: [0, 7, 0], IOS: [9, 0, 0], Node: [4, 0, 0], Opera: [31, 0, 0], Safari: [9, 0, 0], }, Using: {},};
const getUnsupportedFeatures = (name: string, versionStr: string) => { const features = Object.keys(jsTable); const version = versionStr.split(".").slice(0, 3).map((v) => parseInt(v, 10)); if (version.some((v) => isNaN(v))) { // invalid version return []; } if (version.length === 1) { version.push(0, 0); } else if (version.length === 2) { version.push(0); } return features.filter((feature) => { const v = jsTable[feature][name]; if (!v) { return true; } return versionLargeThan(v, version as Version); });};
const versionLargeThan = (v1: Version, v2: Version) => { return v1[0] > v2[0] || (v1[0] === v2[0] && v1[1] > v2[1]) || (v1[0] === v2[0] && v1[1] === v2[1] && v1[2] > v2[2]);};
const getBrowserInfo = (ua: string): { name?: string; version?: string } => { const info = uaParser(ua).browser; if (info.name === "HeadlessChrome") { info.name = "Chrome"; } else if (info.name === "Safari" && ua.includes("iPhone;")) { info.name = "iOS"; } return uaParser(ua).browser; return info;};
const esmaUnsupportedFeatures: [string, number][] = [ "es2022", "es2021", "es2020", "es2019", "es2018", "es2017", "es2016", "es2015",].map((esma) => [ esma, getUnsupportedFeatures(esma.slice(0, 2).toUpperCase(), esma.slice(2)).length,]);
const rVersion = /^(\d+)\.(\d+)\.(\d+)/;
/** get build target from the `User-Agent` header by checking the `jsTable` object. */export const getBuildTargetFromUA = (userAgent: string | null) => { if (!userAgent || userAgent.startsWith("curl/")) { return "esnext"; } if (userAgent.startsWith("Deno/")) { const v = userAgent.slice(5).match(rVersion); if (v) { const version = v.slice(1).map((v) => parseInt(v, 10)) as Version; if (!versionLargeThan(version, [1, 33, 1])) { return "deno"; } } return "denonext"; } if ( userAgent === "undici" || userAgent.startsWith("Node/") || userAgent.startsWith("Bun/") ) { return "node"; } const browser = getBrowserInfo(userAgent); if (!browser.name || !browser.version) { return "esnext"; } const unsupportFeatures = getUnsupportedFeatures( browser.name, browser.version, ); for (const [esma, n] of esmaUnsupportedFeatures) { if (unsupportFeatures.length <= n) { return esma; } } return "esnext";};
esm
Version Info
a year ago
