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is-resolvable

A Node.js module to check if a given module ID is resolvable with `require()`

const isResolvable = require('is-resolvable');
isResolvable('fs'); //=> true
isResolvable('path'); //=> true
// When ./index.js exists
isResolvable('./index.js') //=> true
isResolvable('./index') //=> true
isResolvable('.') //=> true

# Installation

Use npm.

npm install is-resolvable

# API

const isResolvable = require('is-resolvable');

## isResolvable(<em>moduleId</em> [, <em>options</em>])

moduleId: `string` (module ID)
options: `Object` (`require.resolve` options)
Return: `boolean`

It returns `true` if `require()` can load a file form a given module ID, otherwise `false`.

const isResolvable = require('is-resolvable');
// When ./foo.json exists
isResolvable('./foo.json'); //=> true
isResolvable('./foo'); //=> true
isResolvable('./foo.js'); //=> false
// When `eslint` module is installed but `jshint` isn't
isResolvable('eslint'); //=> true
isResolvable('jshint'); //=> false
// When `lodash` module is installed
isResolvable('lodash/isObject'); //=> true
isResolvable('lodash/fp/reject.js'); //=> true

The second argument accepts an options object for `require.resolve()`.

// When ./bar/baz.js exists
isResolvable('./baz.js'); //=> false
isResolvable('./baz.js', {paths: ['bar']}); //=> true

# License

ISC License © 2018 Shinnosuke Watanabe