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6000 packages found
ES2019 spec-compliant String.prototype.trimEnd shim.
ESLint JavaScript language implementation
Polyfill for Metadata Reflection API
Validate XML, Parse XML, Build XML without C/C++ based libraries
JavaScript library for DOM operations
ES Object-related atoms: Object, ToObject, RequireObjectCoercible
A parser that converts TypeScript source code into an ESTree compatible form
Tiny JavaScript tokenizer.
Get the byteLength out of a DataView, robustly.
`Object.defineProperty`, but not IE 8's broken one.
regexpu’s core functionality (i.e. `rewritePattern(pattern, flag)`), capable of translating ES6 Unicode regular expressions to ES5.
- codegen
- desugaring
- ecmascript
- es5
- es6
- harmony
- javascript
- refactoring
- regex
- regexp
- regular expressions
- rewriting
- syntax
- transformation
- View more
Determine if the JS environment has `Symbol.toStringTag` support. Supports spec, or shams.
Is this value a JS ArrayBuffer?
An ESnext spec-compliant `Array.prototype.toSorted` shim/polyfill/replacement that works as far down as ES3.
An ESnext spec-compliant iterator helpers shim/polyfill/replacement that works as far down as ES3.
- javascript
- ecmascript
- polyfill
- shim
- es-shims
- es-shim API
- Iterator
- helpers
- from
- map
- filter
- take
- drop
- flatMap
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An ESnext spec-compliant `Object.groupBy` shim/polyfill/replacement that works as far down as ES3.
Detect Browser, Engine, OS, CPU, and Device type/model from User-Agent data. Supports browser & node.js environment
Gets the description of a Symbol. Handles `Symbol()` vs `Symbol('')` properly when possible.
JavaScript parser, mangler/compressor and beautifier toolkit
Get the ArrayBuffer out of a DataView, robustly.