html-entities-not-email-friendly

All HTML entities which are not email template friendly

Install

This package is pure ESM. If you're not ready yet, install an older version of this program, 0.5.0 (npm i html-entities-not-email-friendly@0.5.0).

npm i html-entities-not-email-friendly

Quick Take

import { strict as assert } from "assert";

import {
  notEmailFriendly,
  notEmailFriendlySetOnly,
  notEmailFriendlyLowercaseSetOnly,
  notEmailFriendlyMinLength,
  notEmailFriendlyMaxLength,
} from "html-entities-not-email-friendly";

// it's object, mapping entity names to numeric equivalents
assert.equal(Object.keys(notEmailFriendly).length, 1841);

// it's a Set, only listing the bad entity names
assert.equal(notEmailFriendlySetOnly.size, 1841);

// is ≳ email-friendly?
assert.equal(notEmailFriendlySetOnly.has("GreaterTilde"), true);
// no, use numeric entity

// is   email-friendly?
assert.equal(notEmailFriendlySetOnly.has("nbsp"), false);
// yes, it's OK

Documentation

Please visit codsen.com for a full description of the API.

Contributing

To report bugs or request features or assistance, raise an issue on GitHub.

Licence

MIT License

Copyright © 2010-2025 Roy Revelt and other contributors

Change Log

All notable changes to this project will be documented in this file. See Conventional Commits for commit guidelines.

0.9.0 (2025-10-15)

Features

• if value to be added is a number, keep it as is, don't stringify (ce3e1a5)

0.8.0 (2022-12-01)

BREAKING CHANGES

• Minimum supported Node version is v14.18; we're dropping v12 support

0.7.0 (2022-08-12)

Features

• export types (11b5fb9)

0.6.0 (2021-09-09)

Features

• migrate to ES Modules (8c9d95d)

BREAKING CHANGES

• programs now are in ES Modules and won't work with Common JS require()

0.5.0 (2021-05-24)

Features

• config file based major bump blacklisting (e15f9bb)

0.4.15 (2021-04-11)

Reverts

• Revert "chore: setup refresh" (23cf206)

0.4.1 (2021-01-28)

Fixed

• add testStats to npmignore (f3c84e9)

0.4.0 (2021-01-23)

Features

• rewrite in TS (4947140)

0.3.0 (2020-11-28)

Accidental version bump during migration to SourceHut. Sorry about that.

0.2.0 (2020-04-18)

Features

• add notEmailFriendlySetOnly and notEmailFriendlyLowercaseSetOnly. 288% perf gain (22b4e9b)

0.1.0 (2019-08-26)

Features

• initial release (8186969)