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babel-preset-es2015-without-strict

library0.0.4jsnpmunverified

A Babel preset that includes all ES2015 plugins (like babel-preset-es2015) but disables the automatic prepending of 'use strict' directives. This is useful when you want ES2015 transpilation without forcing strict mode, for example when combining with other scripts that are not strict-mode compatible or when targeting environments where strict mode causes issues. Version 0.0.4 is the latest and only release; there are no updates, and the preset is now obsolete because Babel 7+ deprecated the es2015 preset in favor of individual plugins or @babel/preset-env. This preset works only with Babel 6.x.

devops

npm install babel-preset-es2015-without-strict

github ↗package ↗

INSTALL

IMPORT

SIG · BABEL-PRESET-ES201

babel-preset-es2015-without-strict

devopsjavascriptv0.0.4

Install

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Import

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Disk

—

Pass rate

0/ 6

Env Coverage0 / 6

glibc

18–22

musl

18–22

Install & Compatibility

Where this runs

tested against v? · npm install

Install × environment matrix

Each cell = how many times install + import succeeded across repeated harness runs. Partial = flaky.
glibc = Debian/Ubuntu slim · musl = Alpine Linux

musl

node 18–226 runs

build_error

glibc

node 18–226 runs

build_error

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

default (preset)

✓ { "presets": ["es2015-without-strict"] }

✗ { "presets": ["babel-preset-es2015-without-strict"] }

In .babelrc or babel config, use the short name 'es2015-without-strict'. Using the full npm package name is incorrect.

preset via Node API

✓ require('babel-core').transform(code, { presets: ['es2015-without-strict'] });

✗ require('babel-core').transform(code, { presets: [require('babel-preset-es2015-without-strict')] });

Pass the preset name as a string; Babel resolves it internally. Passing the required module object is not the standard API.

preset via CLI

✓ babel script.js --presets es2015-without-strict

✗ babel script.js --presets babel-preset-es2015-without-strict

CLI expects the preset name without the 'babel-preset-' prefix.

Install preset, configure .babelrc, and transpile an ES2015 arrow function/export to ES5 without strict mode directive.

// Install npm install --save-dev babel-preset-es2015-without-strict babel-preset-es2015 babel-cli // .babelrc { "presets": ["es2015-without-strict"] } // Example ES2015 code (input.js) const hello = () => 'Hello World'; export default hello; // Transpile via CLI babel input.js --out-file output.js // Output will be ES5 without 'use strict' "use strict"; // this line is omitted var hello = function hello() { return 'Hello World'; }; exports.default = hello;

Debug

Known issues

deprecatedThis preset is for Babel 6 only and is no longer maintained. Babel 7 uses @babel/preset-env which can control strict mode via the 'strict' option.

fix

Upgrade to Babel 7 and use @babel/preset-env with the 'modules' and 'strict' options to achieve the same effect.

affects: >=0.0.0

breakingThe preset does not include any polyfills. You must separately include babel-polyfill or core-js for features like Promises, Map, Set, etc.

fix

Add 'babel-polyfill' to your entry point or use @babel/preset-env with 'useBuiltIns'.

affects: >=0.0.0

gotchaOmitting 'use strict' can lead to issues when transpiled code is concatenated with other scripts that rely on strict mode. In non-strict mode, 'this' in functions defaults to the global object, which can cause bugs.

fix

Ensure your final bundle is wrapped in a function scope or use a module bundler that adds strict mode per module.

affects: >=0.0.0

Errors

Common errors & fixes

Error: Requires Babel 6.x, but you have Babel 7.x installed.

This preset is incompatible with Babel 7+.

fix

Downgrade to Babel 6, or migrate to Babel 7 and use @babel/preset-env with the 'strict' option set to false.

ReferenceError: regeneratorRuntime is not defined

The preset does not include the regenerator runtime for generators/async functions.

fix

In Babel 6, add babel-polyfill or babel-plugin-transform-runtime.

Module not found: Can't resolve 'babel-preset-es2015-without-strict'

The preset is not installed or the name is misspelled in .babelrc.

fix

Run 'npm install --save-dev babel-preset-es2015-without-strict' and use 'es2015-without-strict' (without 'babel-preset-' prefix) in config.

Upgrade

Version history

0.0.4latest on npm

Audit

Dependencies

babel-preset-es2015optionalBase preset whose plugins are included without the strict mode plugin.

Agent activity

4 hits · last 30 days

node

Resources

githubhttps://github.com/fancyboynet/babel-preset-es2015-without-strict ↗

packagehttps://www.npmjs.com/package/babel-preset-es2015-without-strict ↗