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18 lines
687 B
18 lines
687 B
10 months ago
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# Scan Same QR Code More Than Once
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You might have noticed that scanning the same QR code again doesn't work.
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The thing is when a QR code is in the view of your the camera it's decoded multiple times a second.
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You don't want to be flooded with decode events that often though.
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That's why the last decoded QR code is "cached" and an event is only emitted, when the decoded content changes.
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However this cache is reset when you change the `camera` prop.
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We can exploit that to scan same QR codes multiple times in a row.
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<ClientOnly>
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<DemoWrapper component="ScanSameQrcodeMoreThanOnce" />
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</ClientOnly>
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### Source
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<<< @/docs/.vuepress/components/demos/ScanSameQrcodeMoreThanOnce.vue
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