1356 packages found

An AST-based pattern checker for JavaScript.

published 8.42.0 5 days ago
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JSON for Humans

published 2.2.3 5 months ago
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ECMAScript parsing infrastructure for multipurpose analysis

published 4.0.1 5 years ago
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Get and robustly cache all JS language-level intrinsics at first require time

published 1.2.1 24 days ago
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JavaScript parser, mangler/compressor and beautifier toolkit

published 3.17.4 7 months ago
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ES spec-like internal slots

published 1.0.5 4 months ago
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ECMAScript 6 (Harmony) compatibility shims for legacy JavaScript engines

published 0.35.8 2 months ago
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Is this value a JS ArrayBuffer?

published 3.0.2 3 months ago
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An Esprima-compatible JavaScript parser built on Acorn

published 9.5.2 a month ago
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ES2015 `Object.assign()` ponyfill

published 4.1.1 6 years ago
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JavaScript parser, mangler/compressor and beautifier toolkit for ES6+

published 5.17.7 6 days ago
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A query library for ECMAScript AST using a CSS selector like query language.

published 1.5.0 3 months ago
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A JavaScript parser

published 7.22.4 9 days ago
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Tiny JavaScript tokenizer.

published 8.0.1 5 months ago
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ECMAScript 5 compatibility shims for legacy JavaScript engines

published 4.6.7 a year ago
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An ESLint custom parser which leverages TypeScript ESTree

published 5.59.9 2 days ago
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An ESnext spec-compliant `Array.prototype.toSorted` shim/polyfill/replacement that works as far down as ES3.

published 1.1.1 7 months ago
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Determine if the JS environment has `Symbol.toStringTag` support. Supports spec, or shams.

published 1.0.0 2 years ago
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regexpu’s core functionality (i.e. `rewritePattern(pattern, flag)`), capable of translating ES6 Unicode regular expressions to ES5.

published 5.3.2 3 months ago
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ECMAScript “ToPrimitive” algorithm. Provides ES5 and ES2015 versions.

published 1.2.1 4 years ago
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