es-abstract (1.24.0)
Published 2026-02-24 13:55:59 +00:00 by atheaadmin
Installation
registry=npm install es-abstract@1.24.0"es-abstract": "1.24.0"About this package
es-abstract 
ECMAScript spec abstract operations.
Every operation is available by edition/year and by name - for example, es-abstract/2020/Call gives you the Call operation from ES2020, es-abstract/5/Type gives you the Type operation from ES5.
All abstract operations are also available under an es5/es2015/es2016/es2017/es2018/es2019/es2020/es2021 entry point, and as a property on the main export, but using deep imports is highly encouraged for bundle size and performance reasons. Non-deep entry points will be removed in the next semver-major release.
Example
var ES = require('es-abstract');
var assert = require('assert');
assert(ES.isCallable(function () {}));
assert(!ES.isCallable(/a/g));
Tests
Simply clone the repo, npm install, and run npm test
Security
Please email @ljharb or see https://tidelift.com/security if you have a potential security vulnerability to report.
Dependencies
Dependencies
| ID | Version |
|---|---|
| array-buffer-byte-length | ^1.0.2 |
| arraybuffer.prototype.slice | ^1.0.4 |
| available-typed-arrays | ^1.0.7 |
| call-bind | ^1.0.8 |
| call-bound | ^1.0.4 |
| data-view-buffer | ^1.0.2 |
| data-view-byte-length | ^1.0.2 |
| data-view-byte-offset | ^1.0.1 |
| es-define-property | ^1.0.1 |
| es-errors | ^1.3.0 |
| es-object-atoms | ^1.1.1 |
| es-set-tostringtag | ^2.1.0 |
| es-to-primitive | ^1.3.0 |
| function.prototype.name | ^1.1.8 |
| get-intrinsic | ^1.3.0 |
| get-proto | ^1.0.1 |
| get-symbol-description | ^1.1.0 |
| globalthis | ^1.0.4 |
| gopd | ^1.2.0 |
| has-property-descriptors | ^1.0.2 |
| has-proto | ^1.2.0 |
| has-symbols | ^1.1.0 |
| hasown | ^2.0.2 |
| internal-slot | ^1.1.0 |
| is-array-buffer | ^3.0.5 |
| is-callable | ^1.2.7 |
| is-data-view | ^1.0.2 |
| is-negative-zero | ^2.0.3 |
| is-regex | ^1.2.1 |
| is-set | ^2.0.3 |
| is-shared-array-buffer | ^1.0.4 |
| is-string | ^1.1.1 |
| is-typed-array | ^1.1.15 |
| is-weakref | ^1.1.1 |
| math-intrinsics | ^1.1.0 |
| object-inspect | ^1.13.4 |
| object-keys | ^1.1.1 |
| object.assign | ^4.1.7 |
| own-keys | ^1.0.1 |
| regexp.prototype.flags | ^1.5.4 |
| safe-array-concat | ^1.1.3 |
| safe-push-apply | ^1.0.0 |
| safe-regex-test | ^1.1.0 |
| set-proto | ^1.0.0 |
| stop-iteration-iterator | ^1.1.0 |
| string.prototype.trim | ^1.2.10 |
| string.prototype.trimend | ^1.0.9 |
| string.prototype.trimstart | ^1.0.8 |
| typed-array-buffer | ^1.0.3 |
| typed-array-byte-length | ^1.0.3 |
| typed-array-byte-offset | ^1.0.4 |
| typed-array-length | ^1.0.7 |
| unbox-primitive | ^1.1.0 |
| which-typed-array | ^1.1.19 |
Development Dependencies
| ID | Version |
|---|---|
| @ljharb/eslint-config | ^21.1.1 |
| @unicode/unicode-15.0.0 | ^1.6.6 |
| array.from | ^1.1.6 |
| array.prototype.filter | ^1.0.4 |
| array.prototype.flatmap | ^1.3.3 |
| array.prototype.indexof | ^1.0.8 |
| available-regexp-flags | ^1.0.4 |
| cheerio | =1.0.0-rc.3 |
| define-accessor-property | ^1.0.0 |
| define-data-property | ^1.1.4 |
| diff | ^7.0.0 |
| eclint | ^2.8.1 |
| es-value-fixtures | ^1.7.1 |
| eslint | =8.8.0 |
| for-each | ^0.3.5 |
| function-bind | ^1.1.2 |
| functions-have-names | ^1.2.3 |
| glob | ^7.2.3 |
| has-bigints | ^1.1.0 |
| has-named-captures | ^1.0.0 |
| has-strict-mode | ^1.1.0 |
| in-publish | ^2.0.1 |
| is-bigint | ^1.1.0 |
| is-core-module | ^2.16.1 |
| jackspeak | =2.1.1 |
| make-async-function | ^1.0.0 |
| make-async-generator-function | ^1.0.0 |
| make-generator-function | ^2.0.0 |
| mock-property | ^1.1.0 |
| npmignore | ^0.3.1 |
| nyc | ^10.3.2 |
| object.fromentries | ^2.0.8 |
| safe-bigint | ^1.1.1 |
| safe-publish-latest | ^2.0.0 |
| ses | ^1.12.0 |
| tape | ^5.9.0 |
Keywords
ECMAScript
ES
abstract
operation
abstract operation
JavaScript
ES5
ES6
ES7