Website Structure

Frontend-Learner/node_modules/is64bit/browser.js

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+const userAgentSignatures = [
+	'amd64',
+	'ia64',
+	'irix64',
+	'ppc64',
+	'sparc64',
+	'win64',
+	'wow64',
+	'x64;', // The semicolon is important to prevent false-positives.
+	'x64_64',
+	'x86-64',
+	'x86_64',
+];
+
+export async function is64bit() {
+	if (!globalThis.navigator) {
+		return false;
+	}
+
+	const {navigator} = globalThis;
+
+	if (navigator.userAgentData?.getHighEntropyValues) {
+		// It can throw if the user-agent decides that one or more of the hints requested should not be returned.
+		try {
+			const {bitness} = await navigator.userAgentData.getHighEntropyValues(['bitness']);
+			return bitness === '64';
+		} catch {}
+	}
+
+	return is64bitSync();
+}
+
+export function is64bitSync() {
+	if (!globalThis.navigator) {
+		return false;
+	}
+
+	const {navigator} = globalThis;
+
+	const userAgent = navigator.userAgent.toLowerCase();
+	if (userAgentSignatures.some(signature => userAgent.includes(signature))) {
+		return true;
+	}
+
+	if (navigator.cpuClass.toLowerCase() === 'x64') {
+		return true;
+	}
+
+	return false;
+}
+