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This is a playground to test code. It runs a full Node.js environment and already has all of npm’s 1,000,000+ packages pre-installed, including @extra-object/key with all npm packages installed. Try it out:

const object = require('extra-object'); var x = {a: 1, b: 2, c: 3}; object.key(x); object.key(x, 0.5);

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@extra-object/key v2.2.5

Picks an arbitrary key.

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