Uncaught TypeError: Cannot read properties of undefined (reading ‘mount‘) at 134.html:19:10

书坊尚 2022-03-12 阅读 158

<!DOCTYPE html>
<html>
	<body>
        <div id="app-a">App a: {{ message }}</div>
		<div id="app-b">App b: {{ message }}</div>
			
		
        
		<script src="https://unpkg.com/vue@next"></script>
		<script>
		    const  sourOfTruth = Vue.reactive({
				message: 'Hello'
			})

			const appA = Vue.createApp({
				data() {
					return sourOfTruth
				}
			}).app.mount('#app-a')

			const appB = Vue.createApp({
				data() {
					return sourOfTruth
				}
			}).app.mount('#app-b')
			
		</script>
	</body>
</html>

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