npm
es-shims/String.prototype.trimEnd
ES2019 spec-compliant String.prototype.trimEnd shim
MITAug 4, 2026 · metrics 2.10.0
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Catalogue tag
#polyfill
Every repository in the public record carrying this tag — from its GitHub topics or the keywords its package registries publish. Health is measured under the same versioned methodology as the rest of the record.
103 records
Packagist
nanasess/bcmath-polyfill
PHP 8.4 bcmath functions polyfill with fallback compatibility for environments without bcmath extension. Based on phpseclib/bcmath_compat with additional support for new PHP 8.4 bcmath functions.
MITJul 17, 2026 · metrics 2.10.0
npm
sanity-io/eventsource
No repository description published.
MITAug 27, 2026 · metrics 2.10.0
NuGet
Tyrrrz/PolyShim
Collection of polyfills for projects targeting older versions of .NET
MITJul 18, 2026 · metrics 2.10.0
Packagist
PHPCompatibility/PHPCompatibilityPasswordCompat
PHPCompatibility ruleset which can be included in projects using @ircmaxell's PasswordCompat polyfill library
LGPL-3.0Jul 21, 2026 · metrics 2.10.0
npm
lennondotw/layout-zoom
React component that scales content up or down and has it actually affect layout — CSS zoom semantics from transform: scale() in an explicitly sized wrapper, without WebKit's zoom font-metric bugs.
MITSep 5, 2026 · metrics 2.10.0
Packagist
php-ds/polyfill
Compatibility polyfill
MITJul 17, 2026 · metrics 2.10.0
Packagist
symfony/polyfill-intl-grapheme
Symfony polyfill for intl's grapheme_* functions
MITAug 22, 2026 · metrics 2.10.0
Packagist
symfony/polyfill-mbstring
Symfony polyfill for the Mbstring extension
MITAug 22, 2026 · metrics 2.10.0
Packagist
symfony/polyfill-php83
Symfony polyfill backporting some PHP 8.3+ features to lower PHP versions
MITAug 22, 2026 · metrics 2.10.0
Packagist
symfony/polyfill-php84
Symfony polyfill backporting some PHP 8.4+ features to lower PHP versions
MITAug 22, 2026 · metrics 2.10.0
npm
es-shims/array-includes
Array.prototype.includes spec-compliant polyfill
MITAug 4, 2026 · metrics 2.10.0
npm
inspect-js/has-symbols
Determine if the JS environment has Symbol support. Supports spec, or shams.
MITAug 4, 2026 · metrics 2.10.0
npm
ljharb/object.assign
ES6 spec-compliant Object.assign shim. From https://github.com/es-shims/es6-shim
MITAug 4, 2026 · metrics 2.10.0
Packagist
paragonie/random_compat
PHP 5.x support for random_bytes() and random_int()
MITAug 27, 2026 · metrics 2.10.0
npm
es-shims/Array.prototype.flat
An ESnext spec-compliant `Array.prototype.flat` shim/polyfill/replacement that works as far down as ES3.
MITAug 4, 2026 · metrics 2.10.0
npm
es-shims/Array.prototype.flatMap
An ESnext spec-compliant `Array.prototype.flatMap` shim/polyfill/replacement that works as far down as ES3.
MITAug 4, 2026 · metrics 2.10.0
Packagist
symfony/polyfill-deepclone
Symfony polyfill for the deepclone extension
MITAug 27, 2026 · metrics 2.10.0
npm
es-shims/Object.entries
ES2017 spec-compliant shim for Object.entries
MITAug 4, 2026 · metrics 2.10.0
npm
es-shims/Object.values
ES2017 spec-compliant shim for Object.values
MITAug 4, 2026 · metrics 2.10.0
npm
es-shims/RegExp.prototype.flags
ES6 spec-compliant RegExp.prototype.flags shim
MITAug 4, 2026 · metrics 2.10.0
Packagist
symfony/polyfill-intl-normalizer
Symfony polyfill for intl's Normalizer class and related functions
MITAug 22, 2026 · metrics 2.10.0
Packagist
symfony/polyfill-php85
Symfony polyfill backporting some PHP 8.5+ features to lower PHP versions
MITAug 22, 2026 · metrics 2.10.0
npm
es-shims/Object.fromEntries
Official ES spec-compliant polyfill for Object.fromEntries
MITAug 4, 2026 · metrics 2.10.0
npm
es-shims/String.prototype.trimStart
ES2019 spec-compliant String.prototype.trimStart shim
MITAug 4, 2026 · metrics 2.10.0
npm
ljharb/object-keys
Object.keys shim
MITAug 4, 2026 · metrics 2.10.0
npm
nolanlawson/marky
High-resolution JavaScript timer based on performance.mark/measure (491 bytes min+gz)
Apache-2.0Aug 13, 2026 · metrics 2.10.0
Packagist
symfony/polyfill-intl-idn
Symfony polyfill for intl's idn_to_ascii and idn_to_utf8 functions
MITAug 22, 2026 · metrics 2.10.0
Packagist
symfony/polyfill-php74
Symfony polyfill backporting some PHP 7.4+ features to lower PHP versions
MITJul 28, 2026 · metrics 2.10.0
Packagist
symfony/polyfill-ctype
Symfony polyfill for ctype functions
MITAug 22, 2026 · metrics 2.10.0