pax_global_header00006660000000000000000000000064145762166760014536gustar00rootroot0000000000000052 comment=cdc51a13770d15cfaa2ef8f650d7bc6627603bf4 paulmillr-Array.prototype.find-32cafa3/000077500000000000000000000000001457621667600202625ustar00rootroot00000000000000paulmillr-Array.prototype.find-32cafa3/.editorconfig000066400000000000000000000002031457621667600227320ustar00rootroot00000000000000[*] end_of_line = lf insert_final_newline = true trim_trailing_whitespace = true charset = utf-8 [*.{js,json}] indent_style = tab paulmillr-Array.prototype.find-32cafa3/.eslintrc000066400000000000000000000011231457621667600221030ustar00rootroot00000000000000{ "root": true, "extends": "@ljharb", "rules": { "array-bracket-newline": 0, "id-length": [2, { "min": 1, "max": 25, "properties": "never" }], "max-statements-per-line": [2, { "max": 2 }], "multiline-comment-style": 0, "new-cap": [2, { "capIsNewExceptions": [ "Call", "IsCallable", "RequireObjectCoercible", "ToInteger", "ToLength", "ToObject", "ToString", ] }], "no-magic-numbers": 0, }, "overrides": [ { "files": "test/**", "rules": { "id-length": 0, "max-lines-per-function": 0, "no-invalid-this": 0, }, } ] } paulmillr-Array.prototype.find-32cafa3/.github/000077500000000000000000000000001457621667600216225ustar00rootroot00000000000000paulmillr-Array.prototype.find-32cafa3/.github/FUNDING.yml000066400000000000000000000011171457621667600234370ustar00rootroot00000000000000# These are supported funding model platforms github: [ljharb] patreon: # Replace with a single Patreon username open_collective: # Replace with a single Open Collective username ko_fi: # Replace with a single Ko-fi username tidelift: npm/array.prototype.find community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry liberapay: # Replace with a single Liberapay username issuehunt: # Replace with a single IssueHunt username otechie: # Replace with a single Otechie username custom: # Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2'] paulmillr-Array.prototype.find-32cafa3/.github/SECURITY.md000066400000000000000000000002351457621667600234130ustar00rootroot00000000000000# Security Please email [@ljharb](https://github.com/ljharb) or see https://tidelift.com/security if you have a potential security vulnerability to report. paulmillr-Array.prototype.find-32cafa3/.github/workflows/000077500000000000000000000000001457621667600236575ustar00rootroot00000000000000paulmillr-Array.prototype.find-32cafa3/.github/workflows/node-aught.yml000066400000000000000000000003221457621667600264320ustar00rootroot00000000000000name: 'Tests: node.js < 10' on: [pull_request, push] jobs: tests: uses: ljharb/actions/.github/workflows/node.yml@main with: range: '< 10' type: minors command: npm run tests-only paulmillr-Array.prototype.find-32cafa3/.github/workflows/node-pretest.yml000066400000000000000000000002061457621667600270110ustar00rootroot00000000000000name: 'Tests: pretest/posttest' on: [pull_request, push] jobs: tests: uses: ljharb/actions/.github/workflows/pretest.yml@main paulmillr-Array.prototype.find-32cafa3/.github/workflows/node-tens.yml000066400000000000000000000003241457621667600262750ustar00rootroot00000000000000name: 'Tests: node.js >= 10' on: [pull_request, push] jobs: tests: uses: ljharb/actions/.github/workflows/node.yml@main with: range: '>= 10' type: minors command: npm run tests-only paulmillr-Array.prototype.find-32cafa3/.github/workflows/rebase.yml000066400000000000000000000002571457621667600256470ustar00rootroot00000000000000name: Automatic Rebase on: [pull_request_target] jobs: _: uses: ljharb/actions/.github/workflows/rebase.yml@main secrets: token: ${{ secrets.GITHUB_TOKEN }} paulmillr-Array.prototype.find-32cafa3/.github/workflows/require-allow-edits.yml000066400000000000000000000003031457621667600302740ustar00rootroot00000000000000name: Require “Allow Edits” on: [pull_request_target] jobs: _: name: "Require “Allow Edits”" runs-on: ubuntu-latest steps: - uses: ljharb/require-allow-edits@main paulmillr-Array.prototype.find-32cafa3/.gitignore000066400000000000000000000005461457621667600222570ustar00rootroot00000000000000# Numerous always-ignore extensions *.diff *.err *.orig *.log *~ # OS or Editor folders .DS_Store .cache Icon? # Folders to ignore .hg .svn # Node.js package manager /node_modules /npm-debug.log # Other stuff *.pyc /tmp # Project stuff # Only apps should have lockfiles npm-shrinkwrap.json package-lock.json yarn.lock coverage .nyc_output .npmignore paulmillr-Array.prototype.find-32cafa3/.npmrc000066400000000000000000000000671457621667600214050ustar00rootroot00000000000000package-lock=false allow-same-version=true message=v%s paulmillr-Array.prototype.find-32cafa3/.nycrc000066400000000000000000000002131457621667600213750ustar00rootroot00000000000000{ "all": true, "check-coverage": false, "reporter": ["text-summary", "text", "html", "json"], "exclude": [ "coverage", "test" ] } paulmillr-Array.prototype.find-32cafa3/CHANGELOG.md000066400000000000000000000126501457621667600220770ustar00rootroot00000000000000# Changelog All notable changes to this project will be documented in this file. The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/) and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html). ## [v2.2.3](https://github.com/es-shims/Array.prototype.find/compare/v2.2.2...v2.2.3) - 2024-03-18 ### Commits - [actions] remove redundant finisher [`5699c0f`](https://github.com/es-shims/Array.prototype.find/commit/5699c0fd952c7e455b1fbe855ab8b6d1690d1e38) - [Deps] update `call-bind`, `define-properties`, `es-abstract`, `es-shim-unscopables` [`01d9650`](https://github.com/es-shims/Array.prototype.find/commit/01d9650f299fc2aed1bba917fa047874b921b518) - [Deps] update `es-abstract` [`9d82ddd`](https://github.com/es-shims/Array.prototype.find/commit/9d82dddadfc46d914bec2b0873fc66e8e26a9a4b) - [Dev Deps] update `aud`, `npmignore`, `tape` [`b02d54e`](https://github.com/es-shims/Array.prototype.find/commit/b02d54e3426766a2bca083f2a6323ebc87d3b572) - [Refactor] use `es-object-atoms` where possible [`1f05f62`](https://github.com/es-shims/Array.prototype.find/commit/1f05f62dd23747ea51d4e599efb71e2ca3ccb650) - [meta] add missing `engines.node` [`b252946`](https://github.com/es-shims/Array.prototype.find/commit/b252946360156e5d3d09d4ed59224c3cbf14967c) - [Dev Deps] update `tape` [`01ac3e8`](https://github.com/es-shims/Array.prototype.find/commit/01ac3e8b2d4b2566dd85f0d1b2dc4cda68693d7f) ## [v2.2.2](https://github.com/es-shims/Array.prototype.find/compare/v2.2.1...v2.2.2) - 2023-08-27 ### Commits - [meta] add `auto-changelog` [`90ef840`](https://github.com/es-shims/Array.prototype.find/commit/90ef8406f1a3bea1d863796bfe0ad8a6f7c715e3) - [Deps] update `es-abstract` [`c83a92f`](https://github.com/es-shims/Array.prototype.find/commit/c83a92f20b4277eaac8d7b858c23daa1790be347) - [Dev Deps] update `@es-shims/api`, `@ljharb/eslint-config`, `aud`, `tape` [`4f76839`](https://github.com/es-shims/Array.prototype.find/commit/4f76839dd1b7f5596a338921bc725959b316e99a) - [Dev Deps] update `@ljharb/eslint-config`, `@es-shims/api`, `aud`, `tape` [`1997871`](https://github.com/es-shims/Array.prototype.find/commit/19978718a422c3ea13797d095b2c3a8bf1b62a8f) - [Deps] update `define-properties`, `es-abstract` [`28eb0a6`](https://github.com/es-shims/Array.prototype.find/commit/28eb0a6f235d5cf5be9437e8a9d0f3b2d18bd77e) - [meta] create SECURITY.md [`dba046f`](https://github.com/es-shims/Array.prototype.find/commit/dba046ffcabe15c05c980b4c71c8adccceb1d1e9) - [meta] fix npmrc config [`574c8fd`](https://github.com/es-shims/Array.prototype.find/commit/574c8fdee7b4fbb3ece7f242b69b7ce1a1ac3968) # 2.2.1 - [Deps] update `define-properties`, `es-abstract` - [actions] update rebase action to use reusable workflow - [meta] use `npmignore` to autogenerate an npmignore file - [meta] create FUNDING.yml - [Dev Deps] update `aud`, `functions-have-names`, `tape` # 2.2.0 - [New] `shim`/`auto`: add `find` to `Symbol.unscopables` - [Deps] update `es-abstract` - [actions] reuse common workflows - [actions] update codecov uploader - [Tests] migrate to tape - [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `@es-shims/api`, `aud`, `safe-publish-latest` # 2.1.2 - [Deps] use `call-bind` for Array slice - [Deps] update `es-abstract` - [readme] update badges - [meta] update scripts - [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `@es-shims/api` - [Tests] migrate travis-ci to Github Actions # 2.1.1 - [Refactor] Only require the parts of es-abstract that are used (77% bundle size decrease) (#28) - [meta] add `funding` field - [Tests] use shared travis-ci configs - [Tests] only run `aud` on prod deps - [Dev Deps] update `eslint`, `@ljharb/eslint-config`; add `safe-publish-latest` # 2.1.0 - [New] add `auto` entry point - [Performance] Remove unnecessary `ToInteger` call. - [Performance] inline `ES.Call` since `IsCallable` is already checked prior to the loop. - [Performance] avoid checking `arguments` indexes beyond `arguments.length` - [meta] Add LICENSE file (#25) - [Deps] update `define-properties`, `es-abstract` - [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `chai`, `mocha` - [Tests] fix matrix; use `nvm install-latest-npm`, test up to latest node - [Tests] add `npm run posttest` # 2.0.4 - [Performance] the entry point should use the native function when compliant # 2.0.3 - [Fix] again: don’t needlessly shim `Array#find` (#22) # 2.0.2 - [Fix] don’t needlessly shim `Array#find` (#22) - [Deps] update `es-abstract` - [Dev Deps] update `@es-shims/api`, `mocha`, `eslint`, `@ljharb/eslint-config` - [Tests] up to `node` `v7.4`, `v4.7`; improve test matrix # 2.0.1 - [Fix] use call instead of apply in bound entry point function (#20) - [Tests] up to `node` `v7.0`, `v6.9`, `v5.12`; improve test matrix - [Tests] add `npm run lint` # 2.0.0 - [Breaking] implement es-shim API (#15) - [Fix] use ToLength, not ToUint32 (#15) - [Fix] Uncallable predicates must throw even when the array is empty (#15) - [Docs] fix browserify example (#12) # 1.0.0 - [Breaking] do not skip holes (per ES6 change) (#6) - [Dev Deps] update `mocha` - [Fix] Older browsers report the typeof some host objects and regexes as "function" (#8) # 0.2.0 - [Tests] Add travis support (#5) - [Tests] Add tests (#5) - [Fix] Fix failing test: 'should work with an array-like object with negative length' (#5) # 0.1.1 - [Fix] check if `Array#find` already exists (#4) # 0.1.0 - Initial release paulmillr-Array.prototype.find-32cafa3/LICENSE000066400000000000000000000021261457621667600212700ustar00rootroot00000000000000The MIT License (MIT) Copyright (c) 2019 Paul Miller (https://paulmillr.com) Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. paulmillr-Array.prototype.find-32cafa3/README.md000066400000000000000000000052151457621667600215440ustar00rootroot00000000000000# array.prototype.find [![Version Badge][npm-version-svg]][package-url] [![github actions][actions-image]][actions-url] [![coverage][codecov-image]][codecov-url] [![dependency status][deps-svg]][deps-url] [![dev dependency status][dev-deps-svg]][dev-deps-url] [![License][license-image]][license-url] [![Downloads][downloads-image]][downloads-url] [![npm badge][npm-badge-png]][package-url] Simple ES6 [Array.prototype.find](http://people.mozilla.org/%7Ejorendorff/es6-draft.html#sec-array.prototype.find) polyfill for older environments taken from [es6-shim](https://github.com/paulmillr/es6-shim). For browsers and node.js. ## Installation * Just include repo before your scripts. * `npm install array.prototype.find` ## Usage * `Array.prototype.find(predicate[, thisArg])` returns first item that matches `predicate` function. * `predicate(value, index, collection)`: takes three arguments * `value`: current collection element * `index`: current collection element index * `collection`: the collection ```javascript // as a function var find = require('array.prototype.find'); find([1, 2], function (x) { return x === 2; }); // 2 // to shim it require('array.prototype.find').shim(); ``` Code example: ```javascript // Default: [1, 5, 10, 15].find(function (a) { return a > 9; }) // 10 ``` ## Acknowledgements Tests, fixes, and travis support added by [_duncanhall](http://twitter.com/_duncanhall) ## License [The MIT License](https://github.com/paulmillr/mit) (c) 2016 Paul Miller (http://paulmillr.com) [package-url]: https://npmjs.org/package/array.prototype.find [npm-version-svg]: https://versionbadg.es/es-shims/Array.prototype.find.svg [deps-svg]: https://david-dm.org/es-shims/Array.prototype.find.svg [deps-url]: https://david-dm.org/es-shims/Array.prototype.find [dev-deps-svg]: https://david-dm.org/es-shims/Array.prototype.find/dev-status.svg [dev-deps-url]: https://david-dm.org/es-shims/Array.prototype.find#info=devDependencies [npm-badge-png]: https://nodei.co/npm/array.prototype.find.png?downloads=true&stars=true [license-image]: https://img.shields.io/npm/l/array.prototype.find.svg [license-url]: LICENSE [downloads-image]: https://img.shields.io/npm/dm/array.prototype.find.svg [downloads-url]: https://npm-stat.com/charts.html?package=array.prototype.find [codecov-image]: https://codecov.io/gh/es-shims/Array.prototype.find/branch/master/graphs/badge.svg [codecov-url]: https://app.codecov.io/gh/es-shims/Array.prototype.find/ [actions-image]: https://img.shields.io/endpoint?url=https://github-actions-badge-u3jn4tfpocch.runkit.sh/es-shims/Array.prototype.find [actions-url]: https://github.com/es-shims/Array.prototype.find/actions paulmillr-Array.prototype.find-32cafa3/auto.js000066400000000000000000000000441457621667600215660ustar00rootroot00000000000000'use strict'; require('./shim')(); paulmillr-Array.prototype.find-32cafa3/implementation.js000066400000000000000000000013431457621667600236460ustar00rootroot00000000000000'use strict'; var ToObject = require('es-object-atoms/ToObject'); var ToLength = require('es-abstract/2024/ToLength'); var IsCallable = require('es-abstract/2024/IsCallable'); module.exports = function find(predicate) { var list = ToObject(this); var length = ToLength(list.length); if (!IsCallable(predicate)) { throw new TypeError('Array#find: predicate must be a function'); } if (length === 0) { return void 0; } var thisArg; if (arguments.length > 0) { thisArg = arguments[1]; } for (var i = 0, value; i < length; i++) { value = list[i]; // inlined for performance: if (Call(predicate, thisArg, [value, i, list])) { if (predicate.apply(thisArg, [value, i, list])) { return value; } } return void 0; }; paulmillr-Array.prototype.find-32cafa3/index.js000066400000000000000000000013221457621667600217250ustar00rootroot00000000000000'use strict'; var define = require('define-properties'); var callBound = require('call-bind/callBound'); var RequireObjectCoercible = require('es-object-atoms/RequireObjectCoercible'); var implementation = require('./implementation'); var getPolyfill = require('./polyfill'); var shim = require('./shim'); var $slice = callBound('Array.prototype.slice'); var polyfill = getPolyfill(); var boundFindShim = function find(array, predicate) { // eslint-disable-line no-unused-vars RequireObjectCoercible(array); var args = $slice(arguments, 1); return polyfill.apply(array, args); }; define(boundFindShim, { getPolyfill: getPolyfill, implementation: implementation, shim: shim }); module.exports = boundFindShim; paulmillr-Array.prototype.find-32cafa3/package.json000066400000000000000000000040611457621667600225510ustar00rootroot00000000000000{ "name": "array.prototype.find", "version": "2.2.3", "description": "Array.prototype.find ES6 polyfill.", "keywords": [ "Array.prototype.find", "find", "es6", "ecmascript 6", "polyfill" ], "main": "index.js", "scripts": { "prepack": "npmignore --auto --commentLines=autogenerated", "prepublishOnly": "safe-publish-latest", "prepublish": "not-in-publish || npm run prepublishOnly", "lint": "eslint --ext=js,mjs .", "postlint": "es-shim-api --bound", "pretest": "npm run lint", "tests-only": "nyc tape 'test/**/*.js'", "test": "npm run tests-only", "posttest": "aud --production", "version": "auto-changelog && git add CHANGELOG.md", "postversion": "auto-changelog && git add CHANGELOG.md && git commit --no-edit --amend && git tag -f \"v$(node -e \"console.log(require('./package.json').version)\")\"" }, "repository": { "type": "git", "url": "git://github.com/paulmillr/Array.prototype.find.git" }, "author": "Paul Miller ", "funding": { "url": "https://github.com/sponsors/ljharb" }, "contributors": [ { "name": "Duncan Hall", "email": "himself@duncanhall.net" } ], "license": "MIT", "bugs": { "url": "https://github.com/paulmillr/Array.prototype.find/issues" }, "devDependencies": { "@es-shims/api": "^2.4.2", "@ljharb/eslint-config": "^21.1.0", "aud": "^2.0.4", "auto-changelog": "^2.4.0", "eslint": "=8.8.0", "functions-have-names": "^1.2.3", "has-strict-mode": "^1.0.1", "in-publish": "^2.0.1", "npmignore": "^0.3.1", "nyc": "^10.3.2", "safe-publish-latest": "^2.0.0", "tape": "^5.7.5" }, "dependencies": { "call-bind": "^1.0.7", "define-properties": "^1.2.1", "es-abstract": "^1.23.2", "es-object-atoms": "^1.0.0", "es-shim-unscopables": "^1.0.2" }, "auto-changelog": { "output": "CHANGELOG.md", "template": "keepachangelog", "unreleased": false, "commitLimit": false, "backfillLimit": false, "hideCredit": true, "startingVersion": "2.2.2" }, "publishConfig": { "ignore": [ ".github/workflows" ] }, "engines": { "node": ">= 0.4" } } paulmillr-Array.prototype.find-32cafa3/polyfill.js000066400000000000000000000006541457621667600224570ustar00rootroot00000000000000'use strict'; module.exports = function getPolyfill() { // Detect if an implementation exists // Detect early implementations which skipped holes in sparse arrays // eslint-disable-next-line no-sparse-arrays var implemented = Array.prototype.find && [, 1].find(function () { return true; }) !== 1; // eslint-disable-next-line global-require return implemented ? Array.prototype.find : require('./implementation'); }; paulmillr-Array.prototype.find-32cafa3/shim.js000066400000000000000000000006421457621667600215620ustar00rootroot00000000000000'use strict'; var define = require('define-properties'); var shimUnscopables = require('es-shim-unscopables'); var getPolyfill = require('./polyfill'); module.exports = function shimArrayPrototypeFind() { var polyfill = getPolyfill(); define( Array.prototype, { find: polyfill }, { find: function () { return Array.prototype.find !== polyfill; } } ); shimUnscopables('find'); return polyfill; }; paulmillr-Array.prototype.find-32cafa3/test/000077500000000000000000000000001457621667600212415ustar00rootroot00000000000000paulmillr-Array.prototype.find-32cafa3/test/implementation.js000066400000000000000000000011751457621667600246300ustar00rootroot00000000000000'use strict'; var implementation = require('../implementation'); var callBind = require('call-bind'); var test = require('tape'); var hasStrictMode = require('has-strict-mode')(); var runTests = require('./tests'); test('as a function', function (t) { t.test('bad array/this value', { skip: !hasStrictMode }, function (st) { /* eslint no-useless-call: 0 */ st['throws'](function () { implementation.call(undefined); }, TypeError, 'undefined is not an object'); st['throws'](function () { implementation.call(null); }, TypeError, 'null is not an object'); st.end(); }); runTests(callBind(implementation), t); t.end(); }); paulmillr-Array.prototype.find-32cafa3/test/index.js000066400000000000000000000006441457621667600227120ustar00rootroot00000000000000'use strict'; var index = require('../'); var test = require('tape'); var runTests = require('./tests'); test('as a function', function (t) { t.test('bad array/this value', function (st) { st['throws'](function () { index(undefined); }, TypeError, 'undefined is not an object'); st['throws'](function () { index(null); }, TypeError, 'null is not an object'); st.end(); }); runTests(index, t); t.end(); }); paulmillr-Array.prototype.find-32cafa3/test/shimmed.js000066400000000000000000000023001457621667600232200ustar00rootroot00000000000000'use strict'; require('../auto'); var test = require('tape'); var defineProperties = require('define-properties'); var callBind = require('call-bind'); var isEnumerable = Object.prototype.propertyIsEnumerable; var functionsHaveNames = require('functions-have-names')(); var hasStrictMode = require('has-strict-mode')(); var runTests = require('./tests'); test('shimmed', function (t) { t.equal(Array.prototype.find.length, 1, 'Array#find has a length of 1'); t.test('Function name', { skip: !functionsHaveNames }, function (st) { st.equal(Array.prototype.find.name, 'find', 'Array#find has name "find"'); st.end(); }); t.test('enumerability', { skip: !defineProperties.supportsDescriptors }, function (et) { et.equal(false, isEnumerable.call(Array.prototype, 'find'), 'Array#find is not enumerable'); et.end(); }); t.test('bad array/this value', { skip: !hasStrictMode }, function (st) { st['throws'](function () { return Array.prototype.find.call(undefined); }, TypeError, 'undefined is not an object'); st['throws'](function () { return Array.prototype.find.call(null); }, TypeError, 'null is not an object'); st.end(); }); runTests(callBind(Array.prototype.find), t); t.end(); }); paulmillr-Array.prototype.find-32cafa3/test/tests.js000066400000000000000000000040171457621667600227430ustar00rootroot00000000000000'use strict'; var canDistinguishSparseFromUndefined = 0 in [undefined]; // IE 6 - 8 have a bug where this returns false. var thrower = function () { throw new Error('should not reach here'); }; module.exports = function (find, t) { var list = [5, 10, 15, 20]; t.equal( find(list, function (item) { return item === 15; }), 15, 'find item by predicate' ); t.equal( find(list, function (item) { return item === 'a'; }), undefined, 'returns undefined when nothing matches' ); t['throws']( function () { find(list); }, TypeError, 'throws without callback' ); var context = {}; var foundIndex = find(list, function (value, index, arr) { t.equal(list[index], value); t.deepEqual(list, arr); t.equal(this, context, 'receiver is as expected'); return false; }, context); t.equal(foundIndex, undefined, 'receives all three arguments'); var arraylike = { 0: 1, 1: 2, 2: 3, length: 3 }; var found = find(arraylike, function (item) { return item === 2; }); t.equal(found, 2, 'works with an array-like object'); t.equal( find({ 0: 1, 1: 2, 2: 3, length: -3 }, thrower), undefined, 'works with an array-like object with negative length' ); t.test('sparse arrays', { skip: !canDistinguishSparseFromUndefined }, function (st) { st.test('works with a sparse array', function (s2t) { var obj = [1, , undefined]; // eslint-disable-line no-sparse-arrays s2t.notOk(1 in obj); var seen = []; var foundSparse = find(obj, function (item, idx) { seen.push([idx, item]); return false; }); s2t.equal(foundSparse, undefined); s2t.deepEqual(seen, [[0, 1], [1, undefined], [2, undefined]]); s2t.end(); }); st.test('works with a sparse array-like object', function (s2t) { var obj = { 0: 1, 2: undefined, length: 3.2 }; var seen = []; var foundSparse = find(obj, function (item, idx) { seen.push([idx, item]); return false; }); s2t.equal(foundSparse, undefined); s2t.deepEqual(seen, [[0, 1], [1, undefined], [2, undefined]]); s2t.end(); }); st.end(); }); };