array-includes
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v3.1.6 - 2022-11-07
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es-abstract
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define-properties
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eslint
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Math.max
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where applicableeslint
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pull_request_target
eventnyc
on all testsimplementation
test; run es-shim-api
in postlint; use tape
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eslint
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entry pointes-abstract
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funding
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testsnpx aud
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jscs
shim.js
actually shims when the polyfill differs from nativenode
v7.9
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es-abstract
es-abstract
jscs
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, semver
node
v5.5
node
v0.8
evalmd
as part of the full test suite, since it's more like a linterdefine-properties
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eslint
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eslint
configio.js
v3.0
io.js
v2.0
es-abstract
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es-abstract
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node
/iojs
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v0.12; allow 0.8 failures.tape
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.tape
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es-abstract
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Readme
An ES7/ES2016 spec-compliant Array.prototype.includes
shim/polyfill/replacement that works as far down as ES3.
This package implements the es-shim API interface. It works in an ES3-supported environment and complies with the proposed spec.
Because Array.prototype.includes
depends on a receiver (the this
value), the main export takes the array to operate on as the first argument.
Engines that need this package include:
npm install --save array-includes
Basic usage: includes(array, value[, fromIndex=0])
var includes = require('array-includes');
var assert = require('assert');
var arr = [ 'one', 'two' ];
includes(arr, 'one'); // true
includes(arr, 'three'); // false
includes(arr, 'one', 1); // false
var arr = [
1,
'foo',
NaN,
-0
];
assert.equal(arr.indexOf(0) > -1, true);
assert.equal(arr.indexOf(-0) > -1, true);
assert.equal(includes(arr, 0), true);
assert.equal(includes(arr, -0), true);
assert.equal(arr.indexOf(NaN) > -1, false);
assert.equal(includes(arr, NaN), true);
assert.equal(includes(arr, 'foo', 0), true);
assert.equal(includes(arr, 'foo', 1), true);
assert.equal(includes(arr, 'foo', 2), false);
/* when Array#includes is not present */
delete Array.prototype.includes;
var shimmedIncludes = includes.shim();
assert.equal(shimmedIncludes, includes.getPolyfill());
assert.equal(arr.includes('foo', 1), includes(arr, 'foo', 1));
/* when Array#includes is present */
var shimmedIncludes = includes.shim();
assert.equal(shimmedIncludes, Array.prototype.includes);
assert.equal(arr.includes(1, 'foo'), includes(arr, 1, 'foo'));
Simply clone the repo, npm install
, and run npm test
FAQs
An ES7/ES2016 spec-compliant `Array.prototype.includes` shim/polyfill/replacement that works as far down as ES3.
The npm package array-includes receives a total of 18,500,688 weekly downloads. As such, array-includes popularity was classified as popular.
We found that array-includes demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
Did you know?
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