需要从textarea获取更新值(Need to get updated value from a textarea)

 我有一个textarea，我在其中插入从自动填充字段中选择的值，我想要做的是从textarea获取更新的值。 
 
 假设我在textarea中输入三个字符a，b和c我删除了字符c。 我遇到的问题是 - >再次当我从自动填充字段中选择一个字符时，所选字符未显示在textarea中， 
 
 该字符确实被添加到内存中，即html代码。 但不会出现在textarea。 下面是html 
 
<div id="secondary" style="min-width:100px; min-height: 10px; float:left">write any character from a to f
    <br/>
    <label for="somechar"></label>
    <input id="somechar" size="22">
    <br>
    <textarea id="some-log" class="log" class="ui-widget-content"></textarea>
</div>
 
 这是Jquery和javascript代码 
 
var secondary = [
    "a",
    "b",
    "c",
    "d",
    "e",
    "f"];
 
 下面的函数在textarea中记录消息。 这是我需要更新值的地方。 我不知道如何使用var thought= $("textarea#some-log").val(); 在这里 
 
function some_log(thought) {
    $("#some-log").append(thought+ ", ").prependTo("#some-log");
}

$("#somechar") /* this function is required when selecting multiple values */
.bind("keydown", function (event) {
    if (event.keyCode === $.ui.keyCode.TAB && $(this).data("ui-autocomplete").menu.active) {
        event.preventDefault();
    }
})
 
 这是Jquery自动完成 
 
    .autocomplete({
    minLength: 0,
    source: function (request, response) {
        // delegate back to autocomplete, but extract the last term
        response($.ui.autocomplete.filter(
        secondary, extractLast(request.term)));
    },
    focus: function () {
        // prevent value inserted on focus
        return false;
    },
    select: function (event, ui) {

        some_log(ui.item ? 
                          ui.item.value :
            "Nothing selected, input was " + this.value);

        var terms = split(this.value);
        // remove the current input
        terms.pop();
        // add the selected item
        terms.push(ui.item.value);
        // add placeholder to get the comma-and-space at the end
        terms.push("");
        this.value = terms.join(", ");
        return false;
    }
});
 
 http://jsfiddle.net/pratik24/MMpDv/ 

I have a textarea in which I am inserting values selected from the autocomplete field, What I want to do is get the updated value from the textarea.
 
supposing I enter three characters a, b and c in the textarea I delete character c. The problem I have is-> again when I select a character from the autocomplete field the character selected does not show up in the textarea,
 
The character does get added to the memory i.e. the html code. But does not show up in the textarea. Below is the html
 
<div id="secondary" style="min-width:100px; min-height: 10px; float:left">write any character from a to f
    <br/>
    <label for="somechar"></label>
    <input id="somechar" size="22">
    <br>
    <textarea id="some-log" class="log" class="ui-widget-content"></textarea>
</div>
 
Here is the Jquery and javascript code
 
var secondary = [
    "a",
    "b",
    "c",
    "d",
    "e",
    "f"];
 
the function below logs the message in the textarea. here is where i need the updated value. I dont know how i can use some thing like var thought= $("textarea#some-log").val(); over here
 
function some_log(thought) {
    $("#some-log").append(thought+ ", ").prependTo("#some-log");
}

$("#somechar") /* this function is required when selecting multiple values */
.bind("keydown", function (event) {
    if (event.keyCode === $.ui.keyCode.TAB && $(this).data("ui-autocomplete").menu.active) {
        event.preventDefault();
    }
})
 
This is Jquery autocomplete
 
    .autocomplete({
    minLength: 0,
    source: function (request, response) {
        // delegate back to autocomplete, but extract the last term
        response($.ui.autocomplete.filter(
        secondary, extractLast(request.term)));
    },
    focus: function () {
        // prevent value inserted on focus
        return false;
    },
    select: function (event, ui) {

        some_log(ui.item ? 
                          ui.item.value :
            "Nothing selected, input was " + this.value);

        var terms = split(this.value);
        // remove the current input
        terms.pop();
        // add the selected item
        terms.push(ui.item.value);
        // add placeholder to get the comma-and-space at the end
        terms.push("");
        this.value = terms.join(", ");
        return false;
    }
});
 
http://jsfiddle.net/pratik24/MMpDv/

原文：https://stackoverflow.com/questions/16818158