[英]Check if the number of a textbox is greater than number entered array of textbox's
我正在尝试将单个文本框值“ totalmarkstoall”的值与文本框的多个数组“ marksscored”进行比较,以下我的Java脚本也在按键功能上进行了比较。
无法执行的操作是,如果该文本框的“ marksscored”值大于“ totalmarkstoall”,则显示弹出窗口:但是也应该擦除该值或不允许输入。
function scorecompare(idval) { var marksscored = idval; var totalmarkstoall = document.getElementById("totalmarkstoall").value; if (parseInt(marksscored) > parseInt(totalmarkstoall)) { alert("greater than Total Mrks"); } else { } }
<input id="totalmarkstoall" type="number" style="border: 1px solid #dbdbdb;" placeholder="Enter Total Marks"></input> <table> <tr> <td> <input type="text" name="marksscored[]" id="marksscored[0]" value="" onkeyup="scorecompare(this.value);"/> </td> </tr> <tr> <td> <input type="text" name="marksscored[]" id="marksscored[1]" value="" onkeyup="scorecompare(this.value);"/> </td> </tr> <tr> <td> <input type="text" name="marksscored[]" id="marksscored[2]" value="" onkeyup="scorecompare(this.value);"/> </td> </tr> </table>
如果您执行这样的操作,您就会知道该值来自哪个输入字段。
HTML:
<table>
<tr>
<td>
marksscored Array of text box's
</td>
</tr>
<tr>
<td>
<input type="text" name="marksscored[]" id="marksscored[0]" value="" onkeyup="scorecompare(this);">
</td>
</tr>
<tr>
<td>
<input type="text" name="marksscored[]" id="marksscored[1]" value="" onkeyup="scorecompare(this);">
</td>
</tr>
<tr>
<td>
<input type="text" name="marksscored[]" id="marksscored[2]" value="" onkeyup="scorecompare(this);">
</td>
</tr>
</table>
JS:
function scorecompare(idval) {
var marksscored = idval;
var totalmarkstoall = document.getElementById("totalmarkstoall").value;
if (parseInt(marksscored.value) > parseInt(totalmarkstoall))
{
alert("greater then Total Mrks");
//do things with inputfield marksscored
} else {
}
}
尝试这个。 像这样使用keyUp
事件。
$( ".marksscored" ).keyup(function() { var marksscored = $(this).val(); var totalmarkstoall = document.getElementById("totalmarkstoall").value; if (parseInt(marksscored) > parseInt(totalmarkstoall)) { alert("greater then Total Mrks"); $(this).val(""); } else { // do something } });
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script> <input id="totalmarkstoall" type="number" STYLE=" border: 1px solid #dbdbdb;" placeholder="Enter Total Marks"></input> <table> <tr> <td> <input type="text" class="marksscored" name="marksscored[]" id="marksscored[0]" value="" /> </td> </tr> <tr> <td> <input type="text" class="marksscored" name="marksscored[]" id="marksscored[1]" value="" /> </td> </tr> <tr> <td> <input type="text" class="marksscored" name="marksscored[]" id="marksscored[2]" value="" /> </td> </tr> </table>
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