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Add a Modernizr check for v mode regexes

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I plan to use v mode regexes to test for emoji sequences, and Michael has advised me that we need to ensure that the "incompatible browser" screen shows if they are not supported.
This commit is contained in:
Robin 2024-07-04 12:35:48 -04:00
parent cd2bd81268
commit e4d138f4d1
1 changed files with 7 additions and 2 deletions
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9
src/vector/index.ts
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@ -56,8 +56,8 @@ function checkBrowserFeatures(): boolean {
return false;
}
// Custom checks atop Modernizr because it doesn't have ES2018/ES2019 checks
// in it for some features we depend on.
// Custom checks atop Modernizr because it doesn't have checks in it for
// some features we depend on.
// Modernizr requires rules to be lowercase with no punctuation.
// ES2018: http://262.ecma-international.org/9.0/#sec-promise.prototype.finally
window.Modernizr.addTest("promiseprototypefinally", () => typeof window.Promise?.prototype?.finally === "function");
@ -70,6 +70,11 @@ function checkBrowserFeatures(): boolean {
);
// ES2019: http://262.ecma-international.org/10.0/#sec-object.fromentries
window.Modernizr.addTest("objectfromentries", () => typeof window.Object?.fromEntries === "function");
// ES2024: https://tc39.es/ecma262/2024/#sec-get-regexp.prototype.unicodesets
window.Modernizr.addTest(
"regexpunicodesets",
() => window.RegExp?.prototype && "unicodeSets" in window.RegExp.prototype,
);
const featureList = Object.keys(window.Modernizr) as Array<keyof ModernizrStatic>;