回答編集履歴
1
test
CHANGED
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@@ -98,7 +98,7 @@
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98
98
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99
99
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```
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100
100
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101
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-
var video_ = document.
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101
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+
var video_ = document.getElementById("video");
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102
102
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103
103
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video_.addEventListener("timeupdate", (e) => {
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104
104
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