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resolve

resolve like require.resolve() on behalf of files asynchronously and synchronously

  • 1.22.8
  • latest
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  • npm
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decreased by-9.34%
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What is resolve?

The resolve npm package is a module for resolving file paths within a project. It is particularly useful for resolving the path of a module as Node.js would, taking into account node_modules folders and the package.json file. It can be used both programmatically and as a command-line tool.

What are resolve's main functionalities?

Asynchronously resolve the path of a module

This feature allows you to asynchronously find the path of a module from a given base directory. The callback receives the resolved path or an error if the module cannot be found.

const resolve = require('resolve');
resolve('module_name', { basedir: '/some/path' }, function (err, res) {
  if (err) console.error(err);
  else console.log(res);
});

Synchronously resolve the path of a module

This feature allows you to synchronously find the path of a module from a given base directory. It either returns the resolved path or throws an error if the module cannot be found.

const resolve = require('resolve');
try {
  const res = resolve.sync('module_name', { basedir: '/some/path' });
  console.log(res);
} catch (err) {
  console.error(err);
}

Resolve a module with custom package filter

This feature allows you to specify a custom filter function to modify the package data before the resolution process. This can be useful for redirecting the main entry point of a package.

const resolve = require('resolve');
const opts = {
  packageFilter: function (pkg) {
    if (pkg.main) {
      pkg.main = 'some-other-file.js';
    }
    return pkg;
  }
};
resolve('module_name', opts, function (err, res) {
  if (err) console.error(err);
  else console.log(res);
});

Command-line interface

The resolve package also provides a command-line interface (CLI) that can be used to resolve the path of a module from the command line.

$ resolve module_name --basedir=/some/path

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Package last updated on 10 Oct 2023

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