Javascript jQuery更改选择文本_Javascript_Select_Text_Replace

Javascript jQuery更改选择文本

javascript select text replace

Javascript jQuery更改选择文本,javascript,select,text,replace,Javascript,Select,Text,Replace,我尝试为cyrillization select.option.text编写函数 function latin_to_cyrill(id5){ var select = document.querySelector('#id5'); var text =(select option:selected).text; var arrru = new Array ('Я','я','Ю','ю','Ч','ч','Ш','ш','Щ','щ','Ж','ж','А','а','Б

我尝试为cyrillization select.option.text编写函数

function latin_to_cyrill(id5){
  var select = document.querySelector('#id5');
    var text =(select option:selected).text;
     var arrru = new Array ('Я','я','Ю','ю','Ч','ч','Ш','ш','Щ','щ','Ж','ж','А','а','Б','б','В','в','Г','г','Д','д','Е','е','Ё','ё','З','з','И','и','Й','й','К','к','Л','л','М','м','Н','н', 'О','о','П','п','Р','р','С','с','Т','т','У','у','Ф','ф','Х','х','Ц','ц','Ы','ы','Ь', 'ь','Э','э');
    var arren = new Array ('Ya','ya','Yu','yu','Ch','ch','Sh','sh','Sh','sh','Zh','zh','A','a','B','b','V','v','G','g','D','d','E','e','E','e','Z','z','I','i','J','j','K','k','L','l','M','m','N','n', 'O','o','P','p','R','r','S','s','T','t','U','u','F','f','H','h','C','c','Y','y','\'','\'','E', 'e');
    for(var i=0; i<arren.length; i++){
        var reg = new RegExp(arren[i], "g");
        text = text.replace(reg, arrru[i]);
                (select option:selected).text=text; 
    }
document.querySelector('#id5')=select;    
}

我做错了什么？

试试这个：

var ddl=document.getElementById('idofselect');
    ddl.options[ddl.selectedIndex].text = text;
    ddl.options[ddl.selectedIndex].value = "";

请参阅下面的工作解决方案，该解决方案还接收选择器作为参数

<!DOCTYPE html>
<html>
<head>
    <meta http-equiv="content-type" content="text/html;charset=utf-8" />
    <script>
        function latin_to_cyrill(selector){
            var select = document.querySelector(selector);
            var selIndex = select.selectedIndex;
            //Retrieve the text from the selected option
            var text = select.options[selIndex].text;
            var arrru = new Array ('Я','я','Ю','ю','Ч','ч','Ш','ш','Щ','щ','Ж','ж','А','а','Б','б','В','в','Г','г','Д','д','Е','е','Ё','ё','З','з','И','и','Й','й','К','к','Л','л','М','м','Н','н', 'О','о','П','п','Р','р','С','с','Т','т','У','у','Ф','ф','Х','х','Ц','ц','Ы','ы','Ь', 'ь','Э','э');
            var arren = new Array ('Ya','ya','Yu','yu','Ch','ch','Sh','sh','Sh','sh','Zh','zh','A','a','B','b','V','v','G','g','D','d','E','e','E','e','Z','z','I','i','J','j','K','k','L','l','M','m','N','n', 'O','o','P','p','R','r','S','s','T','t','U','u','F','f','H','h','C','c','Y','y','\'','\'','E', 'e');

            for(var i=0; i<arren.length; i++){
                var reg = new RegExp(arren[i], "g");
                text = text.replace(reg, arrru[i]);
            }
            //Put back the mofified text to the selected option
            select.options[selIndex].text = text;
        }
    </script>
</head>
<body>
    <select id="id5">
        <option value="1">First Text</option>
        <option value="2">Second Text</option>
    </select>
    <input type=button onclick="latin_to_cyrill('#id5')" value="Run">
</body>
</html>

您使用选择器的方式不正确：首先，我从未见过检索所选选项的语法：

var text=选择选项：selected.text

第二步，尝试将同一选择分配给一个选择：

document.querySelector'id5'=选择

答案取决于你的问题是什么，可惜没有提到。什么是西里尔化？@Ahmed-在谷歌上做一个简单的搜索，你会发现西里尔化是一个将非西里尔字母转换为西里尔字母的系统；与方法的名称完全相同。是否只更改选定的选项，还是更改所有选项？还有，你遇到了什么问题，出了什么问题，或者没有工作？