is-there
Check if a file or directory exists in a given path.
Last updated 3 months ago by ionicabizau .
MIT · Repository · Bugs · Original npm · Tarball · package.json
$ cnpm install is-there 
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is-there

is-there

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Check if a file or directory exists in a given path.

Why? fs.exists already does the job!

Because fs.exists and fs.existsSync will be are deprecated and in some cases we still need them!

fs.exists() is an anachronism and exists only for historical reasons. There should almost never be a reason to use it in your own code. In particular, checking if a file exists before opening it is an anti-pattern that leaves you vulnerable to race conditions: another process may remove the file between the calls to fs.exists() and fs.open(). Just open the file and handle the error when it's not there. fs.exists() will be deprecated. (Source, emphasis added)

:cloud: Installation

# Using npm
npm install --save is-there

# Using yarn
yarn add is-there

:clipboard: Example

const IsThere = require("is-there");

// Sync
console.log(IsThere(`${__dirname}/contents/file`))
// => true
console.log(IsThere.directory(`${__dirname}/contents/dir`))

// Callback
IsThere.file(`${__dirname}/contents/not_found`, exists => {
    console.log(exists)
    // => false
})

// Promises
IsThere.promises.directory(`${__dirname}/contents/dir`).then(exists => {
    console.log(exists)
    // => true
}).catch(console.error)

:question: Get Help

There are few ways to get help:

  1. Please post questions on Stack Overflow. You can open issues with questions, as long you add a link to your Stack Overflow question.
  2. For bug reports and feature requests, open issues. :bug:
  3. For direct and quick help, you can use Codementor. :rocket:

:memo: Documentation

isThere

Checks if a file or directory exists on given path. Use without the new keyword.

Params

  • String path: The path to the file or directory.
  • Function callback: The callback function called with a boolean value representing if the file or directory exists. If this parameter is not a function, the function will run synchronously and return the value.

Return

  • isThere|Boolean The isThere function if the callback parameter was provided, otherwise a boolean value indicating if the file/directory exists or not.

isThere.directory(path, callback)

Checks if the path exists and it is a directory.

Params

  • String path: The path to the directory.
  • Function callback: The callback function called with a boolean value representing if the directory exists. If this parameter is not a function, the function will run synchronously and return the value.

Return

  • isThere|Boolean The isThere function if the callback parameter was provided, otherwise a boolean value indicating if the directory exists or not.

isThere.file(path, callback)

Check if the path exists and it is a file.

Params

  • String path: The path to the file.
  • Function callback: The callback function called with a boolean value representing if the file exists. If this parameter is not a function, the function will run synchronously and return the value.

Return

  • isThere|Boolean The isThere function if the callback parameter was provided, otherwise a boolean value indicating if the file exists or not.

isThere.promises()

The promises interface.

It exports the following methods:

  • isThere.promises.exists
  • isThere.promises.file
  • isThere.promises.directory

:yum: How to contribute

Have an idea? Found a bug? See how to contribute.

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:dizzy: Where is this library used?

If you are using this library in one of your projects, add it in this list. :sparkles:

  • typed-css-modules
  • node-sass-json-importer
  • ajs
  • be-goods
  • parent-search
  • sourcegate
  • fwatcher
  • ali-oss-extra
  • find-file-in-dirs
  • gulp-common-build-tasks
  • a-csv
  • bible.js
  • fie-toolkit-nuke
  • bloggify-actions
  • wml
  • git-stats
  • sp-load
  • engine-tools
  • hal-rc
  • engine-composition-crud
  • kaomojify
  • hg-plus
  • friendly-typed-css-modules
  • safe-file-write
  • no-one-left-behind
  • caipi
  • khoom
  • rc-ts-scripts
  • rc-ts-tools
  • react-scripts-pro
  • fie-toolkit-nuke-test
  • generator-arwen
  • caipi-cli
  • @density/node-sass-json-importer
  • @beisen/typed-css-modules
  • web-term
  • @onenexus/synergy-sass-importer
  • is-git-check
  • @raydeck/wml
  • @skbkontur/typed-css-modules
  • blah
  • gif-cli
  • kotori-webpack-plugin
  • minipod
  • bower-license-webpack-plugin
  • cecil
  • confetti-cli
  • firstant2gradle
  • generator-catena
  • generator-catena-angular-meteor-bootstrap
  • generator-leptir-angular-material
  • generator-leptir-angular-bootstrap
  • generator-leptir
  • generator-catena-angular-meteor-material
  • better-history
  • memories
  • matanza
  • minecraft-manager
  • bible
  • mage-vaulthelper-couchbase
  • gd-cli
  • envctl
  • obj2env-cli
  • fontify
  • low-cli
  • payname
  • f-watcher
  • bowerrc
  • singular_sake
  • uturi-caching
  • emartech-node-sass-json-importer
  • valkyrja
  • unity-asset-sync
  • engine-app
  • npm-interlink
  • panes
  • reindex-cli
  • generator-atomus
  • @dasilvacontin/clothes
  • jisc_build
  • le-serf
  • react-scripts-pro6
  • react-scripts-pro7
  • react-scripts-pro8
  • valkctl
  • @spernigotti/node-sass-json-importer
  • joomlascan
  • @miriamjs/wml
  • typed-css-interfaces
  • @mtsmfm/node-sass-json-importer
  • megadata
  • mage-module-shard
  • mage-vaulthelper-mysql
  • wlink
  • viur-ignite-css
  • viur-ignite-icons
  • viur-ignite-html
  • viur-ignite-js
  • my613-cli
  • tithe
  • tester-init
  • tilda-init
  • grunt-md5symlink
  • cdnjs-importer
  • @loomble/cli
  • mage-validator
  • wmls
  • @isysd/gpm
  • hakka-plugin-typed-css-modules
  • merry-plugin-typed-css-modules
  • ramda-cli
  • heroku-docker
  • heroku-container-tools
  • typed-css-modules-babel
  • @ceoimon/typed-css-modules
  • kaomojify-webpack-plugin
  • typed-css-modules-fork
  • watchwoman
  • watchwomen
  • @computerrock/node-sass-json-importer
  • mtsl
  • artstack-downloader
  • git-stats-importer
  • gpm
  • idea
  • image-to-ascii-cli
  • machine-ip
  • git-issues

:scroll: License

MIT © Ionică Bizău

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