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Old Browser Judgment Judgment for Safari13 and Safari14 and above

Old Browser Judgment Judgment for Safari13 and Safari14 and above

I want to judge old browsers up to Safari 13.

The version of Safari will remain old unless you update your iOS/iPad OS.
Therefore, it often happens that only Safari does not work.

Separating Safari 13 / 14

<script>
console.log('replaceChildren' in window.document);
</script>

Separating Safari 12 / 13

<script>
console.log('visualViewport' in window);
</script>
CONTENTS
Web Browser