Question

我有一个这样的脚本：

<script>
    var stuff = '<input id="testinput" name="testinput" type="text" value="this is the right one" /><input id="testinput2" name="testinput2" type="text" value="this is the wrong one" />'
</script>

我如何使用jQuery从stuff变量中获取值（“这是错误的”）？

Answer 1

使用.val方法。

var value = $(stuff).val();

的更新 的没有注意到你的字符串中有多个输入。在这种情况下，您需要使用.map方法将值作为数组返回。

的 The demo. 的

var stuff = '<input id="testinput" name="testinput" type="text" value="this is the one" /><input id="testinput2" name="testinput2" type="text" value="this is the wrong one" />'; console.log($(stuff).map(function() { return $(this).val(); }));

Answer 2

var stuff = '<input id="testinput" name="testinput" type="text" value="this is the one" /><input id="testinput2" name="testinput2" type="text" value="this is the wrong one" />';

console.log($(stuff).val()); // This is the one

Demo

console.log($($(stuff)[1]).val()); // This is the wrong one

Answer 3

使用val()获取值，或者如果您使用属性.attr()

var v = $(stuff).val();

var attr = $(stuff).attr('attribute you want');

Answer 4

我遇到类似的选择失败问题，直到我这样做：

var stuff = '<input id="testinput" name="testinput" type="text" value="this is the one" /><input id="testinput2" name="testinput2" type="text" value="this is the wrong one" />';

var myValue = HtmlElementAttribute(stuff, 'testinput2', 'value');

function HtmlElementAttribute(htmlString, elementId, attributeName) {
    var foundValue = '';
    $(htmlString).filter(function (x) {
        var idX = eval('$(htmlString)[x].id');
        if (idX && idX == elementId) {
            foundValue = $(eval('$(htmlString)[x].outerHTML')).attr(attributeName);
        }
    });
    return foundValue;
}

jquery：如何从htmlstring获取价值？

4 个答案: