我有这个textarea,当我点击链接时,插入了2个双引号:
<textarea name="comment" id="comment" placeholder="Comment..."></textarea>
<div id="insert">
<a href="javascript:;" title='""'>QUOTES</a>
</div>
<script type="text/javascript" src="jscript.js"></script>
<script type="text/javascript">
$('#insert a').click(function () {
var smiley = $(this).attr('title');
ins2pos(smiley, 'comment');
});
function ins2pos(str, id) {
var TextArea = document.getElementById(id);
var val = TextArea.value;
var before = val.substring(0, TextArea.selectionStart);
var after = val.substring(TextArea.selectionEnd, val.length);
TextArea.value = before + str + after;
setCursor(TextArea, before.length + str.length);
}
function setCursor(elem, pos) {
if (elem.setSelectionRange) {
elem.focus();
elem.setSelectionRange(pos, pos);
} else if (elem.createTextRange) {
var range = elem.createTextRange();
range.collapse(true);
var posr = pos - 1;
range.moveEnd('character', posr);
range.moveStart('character', posr);
range.select();
}
}
</script>
当单击QUOTE链接时,光标会跟在textarea中的最后一个字符之后,如""|
,但我希望光标位于2个引号之间,如"|"
答案 0 :(得分:0)
这是解决方案
setCursor(TextArea, before.length + str.length - 1);