Baseline Widely available
slotchange
ã¤ãã³ãã¯ã HTMLSlotElement
ã¤ã³ã¹ã¿ã³ã¹(<slot>
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¥ã£ã¦ãããã¼ãã®åãã¼ãã夿´ãããå ´åã slotchange
ã¤ãã³ãã¯çºçãã¾ãããå®éã®ãã¼ãèªä½ã夿´ï¼ä¾ãã°ã追å ã¾ãã¯åé¤ï¼ããå ´åã«éãã¾ãã
slotchange ã¤ãã³ããçºè¡ãããã«ã¯ã slot
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ãã®ã¤ãã³ãã¯ãã£ã³ã»ã«ã§ãã¾ããã
æ§æãã®ã¤ãã³ãåã addEventListener()
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addEventListener("slotchange", (event) => {});
onslotchange = (event) => {};
ã¤ãã³ãå
ä¸è¬ç㪠Event
ã§ãã
element.setAttribute("slot", slotName);
// element.assignedSlot = $slot
element.removeAttribute("slot");
// element.assignedSlot = null
次ã®ã¹ããããã¯ã slotchange ã®ä¾ããåãã¾ãã (ã©ã¤ãã§ã確èªã§ãã¾ã)ã
let slots = this.shadowRoot.querySelectorAll("slot");
slots[1].addEventListener("slotchange", (e) => {
let nodes = slots[1].assignedNodes();
console.log(
`Element in Slot "${slots[1].name}" changed to "${nodes[0].outerHTML}".`,
);
});
ããã§ã¯ãã¹ã¦ã® <slot>
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§ãåå¾ãããã³ãã¬ã¼ãã® 2 çªç®ã®ã¹ãããã« slotchange
ã¤ãã³ããªã¹ãã¼ã追å ãã¾ãããã®ä¾ã§ã¯ã³ã³ãã³ãã夿´ããã¦ããã¹ãããã§ãã
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