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Define multiple non-enumerable properties at once. Uses `Object.defineProperty` when available; falls back to standard assignment in older engines.
An Object.keys replacement, in case Object.keys is not available. From https://github.com/es-shims/es5-shim
ECMAScript spec abstract operations.
Standard library
ES5 spec-compliant shim for String.prototype.trim
An ES2015 mostly-spec-compliant `Reflect.getPrototypeOf` sham/polyfill/replacement that works in as many engines as possible
- Reflect.getPrototypeOf
- Object.getPrototypeOf
- proto
- __proto__
- [[Prototype]]
- getPrototypeOf
- ES5
- shim
- polyfill
- es-shim API
- browser
Standard library
An ES5 spec-compliant `Array.prototype.reduce` shim/polyfill/replacement that works as far down as ES3.
An ES5 spec-compliant `Array.prototype.map` shim/polyfill/replacement that works as far down as ES3.
An ES5 spec-compliant `Array.prototype.filter` shim/polyfill/replacement that works as far down as ES3.
ECMAScript reserved words checker
Comprehensive TypeScript/JavaScript utility library with cross-environment support (Node.js, browser, web worker) providing helper functions, polyfills (ES5-ES2023), type checking utilities, and optimized implementations for better minification and code r
An ES5 spec-compliant `Array.prototype.every` shim/polyfill/replacement that works as far down as ES3.
o3 - Javascript Class Framework
An ES5 mostly-spec-compliant `Object.getPrototypeOf` sham/polyfill/replacement that works in as many engines as possible
Standard library
A future proof, backward compatible, JavaScript class utility.
An ES5 spec-compliant `Array.prototype.some` shim/polyfill/replacement that works as far down as ES3.
Polyfills for various EcmaScript 5 and EcmaScript 6 methods distributed as CommonJS modules that can be require'd individually or as a whole.
Webpack plugin to ensure the output results are valid in the specified ES version