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) ã®ã¿ã§ãã Worker
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ã¦ã¼ã¶ã¼ã®å±¥æ´ã®ä¸ãåã®ãã¼ã¸ã次ã®ãã¼ã¸ã¸ç§»åããã«ã¯ã back()
, forward()
, go()
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å±¥æ´å ã®ç¹å®ã®ä½ç½®ã¾ã§ç§»ågo()
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ã¨ãªãã¾ãã)
ã²ã¨ã¤åã®ãã¼ã¸ã¸ã¨æ»ãä¾ã§ã (back()
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ãã¼ã¸ãé²ããä¾ã§ã forward()
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go()
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// 以ä¸ã®æã¯ã
// ã©ã¡ãããã¼ã¸ãåèªã¿è¾¼ã¿ãã
// 广ãããã¾ãã
history.go(0);
history.go();
length
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const numberOfEntries = history.length;
ã¤ã³ã¿ã¼ãã§ã¤ã¹
History
ãã©ã¦ã¶ã¼ã®ã»ãã·ã§ã³å±¥æ´ï¼ããªãã¡ãç¾å¨ã®ãã¼ã¸ãèªã¿è¾¼ã¾ãã¦ããã¿ãããã¬ã¼ã ã§è¡¨ç¤ºãããã¨ããããã¼ã¸ç¾¤ï¼ã®æä½ãã§ãã¾ãã
PopStateEvent
popstate
ã¤ãã³ãã®ã¤ã³ã¿ã¼ãã§ã¤ã¹ã§ãã
以ä¸ã®ä¾ã§ã¯ popstate
ã¤ãã³ãã®ãªã¹ãã¼ãå²ãå½ã¦ã¦ãã¾ãã history ãªãã¸ã§ã¯ãã®ã¡ã½ããã§ç¾å¨ã®ã¿ãã®ãã©ã¦ã¶ã¼å±¥æ´ã®è¿½å ãç½®æãç§»åãªã©ãããã¤ãã®æä½ã説æãã¦ãã¾ãã
window.addEventListener("popstate", (event) => {
alert(
`location: ${document.location}, state: ${JSON.stringify(event.state)}`,
);
});
history.pushState({ page: 1 }, "title 1", "?page=1");
history.pushState({ page: 2 }, "title 2", "?page=2");
history.replaceState({ page: 3 }, "title 3", "?page=3");
history.back(); // alerts "location: http://example.com/example.html?page=1, state: {"page":1}"
history.back(); // alerts "location: http://example.com/example.html, state: null"
history.go(2); // alerts "location: http://example.com/example.html?page=3, state: {"page":3}"
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