Symbols as WeakMap keys, Compression Streams

ECMAScript 2023 feature: symbols as WeakMap keys

This blog post answers two questions:

What are WeakMaps good for?
Why are symbols as WeakMap keys interesting?

Compression Streams are now supported by all major browsers

“The Compression Streams API is for compressing and decompressing streams of data using the gzip or deflate (or deflate-raw) formats.”

“Using the built-in compression of the Compression Streams API, JavaScript applications do not need to include a compression library, making the download size of the application smaller. This useful API is now supported across all browsers.”

For more information on web streams, see the chapter on them in “Shell scripting with Node.js”.

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Symbols as WeakMap keys, Compression Streams

ECMAScript 2023 feature: symbols as WeakMap keys

Compression Streams are now supported by all major browsers

Free, open-source CLI to manage StackedPRs

Older messages

Esbuild v0.21.3; ESLint v9.3.0; Node v22.2.0; Promise.withResolvers(); duplicate named capturing...

Gulp Developer Survey; esbuild v0.21.0; ESLint compatibility utilities; Nx 19.0; Bun v1.1.8; shell

Improved tree-shaking in Rollup; Node v22.1.0; Deno 1.43; npm feedback; npm script runner; refactori

Node.js 22; Bun 1.1.5; JSR is not a package manager

Pnpm v9.0.0; Biome v1.7; ESLint v9.1.0; Node.js collaboration summit; Intl.Segmenter; tree shaking;

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