Showing 1-20 of 388 packages
Check if provided string is an `IdentifierName` as specified in ECMA262 edition 5.1 section 7.6.
Check if provided string is an `IdentifierName` as specified in ECMA262 edition 5.1 section 7.6.
ecma262 implementation in jison
Machine-readable representation of the internals of the ecma-262 spec
ECMA262/402 proposals generator
utility box for ECMAScript language tools
Developer friendly JS Errors
A toolkit of Nullable/Option/Result type implementation in ECMAScript. Their APIs are inspired by Rust's `Option<T>` and `Result<T, E>`.
ECMAScript 6 Symbol polyfill
Fast and easy parser for declarations of import and export in ECMAScript/TypeScript
An ES2019 spec-compliant `Array.prototype.flatMap` shim/polyfill/replacement that works as far down as ES3.
Get and robustly cache all JS language-level intrinsics at first require time
ES5 spec-compliant shim for String.prototype.trim
Fix broken Hermes engine TypedArray implementation for React Native
ES spec-compliant shim for ArrayBuffer.prototype.slice
ES2017 spec-compliant shim for `Object.getOwnPropertyDescriptors` that works in ES5.
Spec-compliant polyfill for String.prototype.matchAll
ES2017 spec-compliant Object.values shim.
ES2017 spec-compliant Object.entries shim.