check-es3-syntax

Check if contents of a file is es3-compatible

v1.0.2 URL: https://unpkg.com/check-es3-syntax@1.0.2/index.js

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safe-identifier

Sanitize strings for use as JavaScript identifiers & property names

v0.4.2 URL: https://unpkg.com/safe-identifier@0.4.2/index.js

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es3 es5 esnext reserved words code generation identifier property

selectn

Curried property accessor function that resolves deeply-nested object properties via dot/bracket-notation string path while mitigating TypeErrors via friendly and composable API.

v1.3.0 URL: https://unpkg.com/selectn@1.3.0/index.js

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has-strict-mode

Does the current JS environment have strict mode? ES5+ should; but let's not assume.

v1.1.0 URL: https://unpkg.com/has-strict-mode@1.1.0/index.js

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strict mode strict mode javascript es3 es5

legacy-extends

Helper to extend a class including defining super_ and superConstruct (optional) on the derived class. Compatible with Node.js inherits and handles es6 classes using Reflect API

v1.1.0 URL: https://unpkg.com/legacy-extends@1.1.0/dist/cjs/index.js

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extends extend inherits constructor super superConstruct ensureProperties Reflect reflect construct class classes babel es3 es5