Baseline Widely available
setRangeText()
㯠HTMLTextAreaElement
ã¤ã³ã¿ã¼ãã§ã¤ã¹ã®ã¡ã½ããã§ã <textarea>
è¦ç´ å
ã®ããã¹ãã®ç¯å²ãã弿°ã¨ãã¦æ¸¡ããæ°ããããã¹ãã§ç½®ãæãã¾ãã
追å ã®ãªãã·ã§ã³å¼æ°ã«ã¯ã夿´ããããã¹ãã®ç¯å²ã®å
é ããã®ç¯å²ã®æ«å°¾ãããã³ããã¹ããæ´æ°ãããå¾ã«é¸æãã¹ã <textarea>
ã®ã©ã®é¨åãå®ç¾©ãããã¼ã¯ã¼ããè¨è¼ãã¾ãã startSelection
㨠endSelection
弿°ãæå®ããã¦ããªãå ´åããã®ç¯å²ã鏿ç¯å²ã§ããã¨è¦ãªããã¾ãã
æå¾ã®å¼æ°ã¯ãããã¹ããç½®æãããå¾ã«é¸æç¯å²ãã©ã®ããã«è¨å®ãããããæ±ºå®ãã¾ãã å¯è½ãªå¤ã¯ã "select"
ã§æ°ãã«æ¿å
¥ãããããã¹ãã鏿ãã "start"
ã§é¸æç¯å²ãæ¿å
¥ãããããã¹ãã®ç´åã«ç§»åãã "end"
ã§é¸æç¯å²ãæ¿å
¥ãããããã¹ãã®ç´å¾ã«ç§»åããæ¢å®å¤ã® "preserve"
ã¯é¸æç¯å²ãç¶æãããã¨ãã¾ãã
ããã«å ã㦠select
ããã³ selectchange
ã¤ãã³ããçºè¡ããã¾ãã
setRangeText(replacement)
setRangeText(replacement, startSelection)
setRangeText(replacement, startSelection, endSelection)
setRangeText(replacement, startSelection, endSelection, selectMode)
弿°
replacement
æ¿å ¥ããæååã
selectionStart
çç¥å¯
æåã®é¸ææåã®ã¤ã³ããã¯ã¹ãã¤ã³ããã¯ã¹ãè¦ç´ ã®å¤ã®é·ããè¶ ãã¦ããå ´åã¯ãå¤ã®æ«å°¾ãæãã¦ãããã®ã¨ã¿ãªããã¾ãã
selectionEnd
çç¥å¯
æå¾ã«é¸æãããæåã®æ¬¡ã®æåã®ã¤ã³ããã¯ã¹ãã¤ã³ããã¯ã¹ãè¦ç´ ã®å¤ã®é·ããè¶
ãã¦ããå ´åã¯ãå¤ã®æ«å°¾ãæãã¦ãããã®ã¨ã¿ãªããã¾ãã selectionEnd
ã selectionStart
ããå°ããå ´åãã©ã¡ãã selectionEnd
ã®å¤ã¨ãã¦æ±ããã¾ãã
selectMode
çç¥å¯
select
ãstart
ãend
ãã¾ãã¯æ¢å®å¤ã® preserve
ã®ããããã®ãã¼ã¯ã¼ãã§ãããã¹ããç½®ãæããããå¾ã«é¸æãã©ã®ããã«è¨å®ããããå®ç¾©ãã¾ãã
ãªã (undefined
)ã
ãã®ä¾ã«ãããã¿ã³ãã¯ãªãã¯ããã¨ãããã¹ãããã¯ã¹å ã®ããã¹ãã®ä¸é¨ãç½®ãæãã¾ããæ°ããæ¿å ¥ãããããã¹ãã¯ããã®å¾ã§å¼·èª¿ï¼é¸æï¼ããã¾ãã
HTML<label for="ta">空ã®å
¥åãã£ã¼ã«ãã®ä¾:</label>
<textarea id="ta">
ãã®ããã¹ãã¯æ´æ°ããã¾ããã
</textarea>
<button id="btn">ããã¹ããæ´æ°</button>
JavaScript
const btn = document.getElementById("btn");
btn.addEventListener("click", () => {
changeText();
});
function changeText() {
const textarea = document.getElementById("ta");
textarea.focus();
textarea.setRangeText("ALREADY", 14, 17, "select");
}
çµæ 仿§æ¸ ãã©ã¦ã¶ã¼ã®äºææ§ é¢é£æ
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