Enum ScriptTarget 

#[repr(u8)]
pub enum ScriptTarget {
    ES3 = 0,
    ES5 = 1,
    ES2015 = 2,
    ES2016 = 3,
    ES2017 = 4,
    ES2018 = 5,
    ES2019 = 6,
    ES2020 = 7,
    ES2021 = 8,
    ES2022 = 9,
    ES2023 = 10,
    ES2024 = 11,
    ES2025 = 12,
    ESNext = 99,
}

ECMAScript target version.

This determines which language features are available during compilation.

Variants

ES3 = 0

ECMAScript 3 (1999)

ES5 = 1

ECMAScript 5 (2009)

ES2015 = 2

ECMAScript 2015 (6th Edition)

ES2016 = 3

ECMAScript 2016 (7th Edition)

ES2017 = 4

ECMAScript 2017 (8th Edition)

ES2018 = 5

ECMAScript 2018 (9th Edition)

ES2019 = 6

ECMAScript 2019 (10th Edition)

ES2020 = 7

ECMAScript 2020 (11th Edition)

ES2021 = 8

ECMAScript 2021 (12th Edition)

ES2022 = 9

ECMAScript 2022 (13th Edition)

ES2023 = 10

ECMAScript 2023 (14th Edition)

ES2024 = 11

ECMAScript 2024 (15th Edition)

ES2025 = 12

ECMAScript 2025 (16th Edition) — TS6 default (LatestStandard)

ESNext = 99

Latest ECMAScript features

Implementations

impl ScriptTarget

pub const fn supports_es2016(self) -> bool

Check if this target supports ES2016+ features (exponentiation operator).

pub const fn supports_es2015(self) -> bool

Check if this target supports ES2015+ features (classes, arrows, etc.)

pub const fn supports_es2017(self) -> bool

Check if this target supports ES2017+ features (async, etc.)

pub const fn supports_es2020(self) -> bool

Check if this target supports ES2020+ features (optional chaining, etc.)

pub const fn supports_es2018(self) -> bool

Check if this target supports ES2018+ features (async generators, dotAll regex, etc.)

pub const fn supports_es2019(self) -> bool

Check if this target supports ES2019+ features (optional catch binding).

pub const fn supports_es2021(self) -> bool

Check if this target supports ES2021+ features (logical assignment).

pub const fn supports_es2022(self) -> bool

Check if this target supports ES2022+ features (class fields, regex ‘d’ flag, etc.)

pub const fn supports_es2023(self) -> bool

Check if this target supports ES2023+ features.

pub const fn supports_es2024(self) -> bool

Check if this target supports ES2024+ features.

pub const fn supports_es2025(self) -> bool

Check if this target supports ES2025+ features.

pub const fn is_es5(self) -> bool

Check if this is an ES5 or earlier target (requires downleveling)

Trait Implementations

impl Clone for ScriptTarget

fn clone(&self) -> ScriptTarget

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ScriptTarget

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for ScriptTarget

fn default() -> ScriptTarget

Returns the “default value” for a type.

impl PartialEq for ScriptTarget

fn eq(&self, other: &ScriptTarget) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for ScriptTarget

impl Eq for ScriptTarget

impl StructuralPartialEq for ScriptTarget