Baseline Widely available
HTMLSelectElement.namedItem()
ã¡ã½ããã¯ãHTMLOptionElement
ã®ãã¡ name
ã¾ã㯠id
ãæå®ãããååã«ä¸è´ãã HTMLOptionElement
ããä¸è´ãããã®ããªãå ´å㯠null
ãè¿ãã¾ãã
JavaScript ã§ã¯ãselectElt.namedItem('value')
ã使ç¨ãã㨠selectElt.namedItem('value')
ã¨åçã«ãªãã¾ãã
item
㯠HTMLOptionElement
ã§ãã<form>
<select id="myFormControl">
<option id="o1">Opt 1</option>
<option id="o2">Opt 2</option>
</select>
</form>
JavaScript
let selectElt = document.getElementById("myFormControl");
elem1 = selectElt.namedItem("o1"); // #o1 ã表ã HTMLOptionElement
ãã ããæ¬¡ã®ããã«æ¸ããã¨ã¯ã§ãã¾ããã
let selectElt = document.getElementById("myFormControl");
elem1 = selectElt.o1; // undefined ãè¿ã
elem1 = selectElt["o1"]; // undefined ãè¿ã
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