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@hapi/topo

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@hapi/topo

Topological sorting with grouping support

  • 6.0.2
  • latest
  • Source
  • npm
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Version published
Weekly downloads
12M
increased by8.09%
Maintainers
7
Weekly downloads
 
Created

What is @hapi/topo?

The @hapi/topo package is designed for managing dependencies and ordering items in a flexible way. It allows you to specify prerequisites for items and automatically sorts them based on these dependencies. This is particularly useful in scenarios where the order of operations is crucial, such as initializing plugins or tasks in a specific sequence.

What are @hapi/topo's main functionalities?

Adding items with dependencies

This feature allows you to add items to a Topo instance with specified dependencies. In the code sample, 'first' depends on 'second', so 'second' will come before 'first' in the output order.

{"const Topo = require('@hapi/topo');
const topo = new Topo();
topo.add('first', { after: ['second'], group: 'a' });
topo.add('second', { group: 'b' });
console.log(topo.nodes); // Output will be in the order of dependencies, ['second', 'first']"}

Grouping and ordering

This feature demonstrates how to group items and ensure they are processed in a specific order based on their group dependencies. Items can be added in groups and ordered relative to other groups.

{"const Topo = require('@hapi/topo');
const topo = new Topo();
topo.add(['first', 'second'], { group: 'a' });
topo.add('third', { group: 'b', after: ['a'] });
console.log(topo.nodes); // Output will respect the group order and dependencies, ['first', 'second', 'third']"}

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Package last updated on 11 Mar 2023

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