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[英]How to get the value of input fields of a particular form on which i clicked ,all the forms and their input have the same class but different value
[英]how to get value of particular element when clicked on button which is having same class
這是我的html
<h3>IRCTC Checked Template</h3>
<div>
<textarea rows="4" cols="50" name="comment" class="txt" form="usrform">
Enter text here...IRCTC Checked Template</textarea>
<button class="w3-btn w3-blue w3-border-black w3-card-24 w3-hover-green
btnclass" id="btn" name="b">Send</button>
</div>
<h3>ID Created Template</h3>
<div>
<textarea rows="4" cols="50" name="comment" class="txt" form="usrform">
Enter text here... ID Created Template</textarea>
<button class="w3-btn w3-blue w3-border-black w3-card-24 w3-hover-green
btnclass" id="btn" name="b">Send</button>
</div>
在單擊具有相同類的按鈕時,我想在此處獲取相應的textarea值
$(".btnclass").click(function(){
alert($('.txt').val());
});
但沒有選擇相應的.txt class
。 對於兩個按鈕,則獲得相同的.txt class
值。 我想按一下按鈕獲取相應的文本類。
問題是因為您正在選擇所有.txt
元素。 相反,你需要使用DOM遍歷找到一個相關的點擊.btnclass
元素。 為此,您可以使用prev()
,如下所示:
$(".btnclass").click(function() { var value = $(this).prev('.txt').val(); console.log(value); });
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <h3>IRCTC Checked Template</h3> <div> <textarea rows="4" cols="50" name="comment" class="txt" form="usrform"> Enter text here...IRCTC Checked Template</textarea> <button class="w3-btn w3-blue w3-border-black w3-card-24 w3-hover-green btnclass" id="btn" name="b">Send</button> </div> <h3>ID Created Template</h3> <div> <textarea rows="4" cols="50" name="comment" class="txt" form="usrform"> Enter text here... ID Created Template</textarea> <button class="w3-btn w3-blue w3-border-black w3-card-24 w3-hover-green btnclass" id="btn" name="b">Send</button> </div>
要獲取所有.txt
值,您可以使用map()
構建它們的數組:
$(".btnclass").click(function() { var values = $('.txt').map(function() { return this.value; }).get(); console.log(values); });
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <h3>IRCTC Checked Template</h3> <div> <textarea rows="4" cols="50" name="comment" class="txt" form="usrform"> Enter text here...IRCTC Checked Template</textarea> <button class="w3-btn w3-blue w3-border-black w3-card-24 w3-hover-green btnclass" id="btn" name="b">Send</button> </div> <h3>ID Created Template</h3> <div> <textarea rows="4" cols="50" name="comment" class="txt" form="usrform"> Enter text here... ID Created Template</textarea> <button class="w3-btn w3-blue w3-border-black w3-card-24 w3-hover-green btnclass" id="btn" name="b">Send</button> </div>
您可以使用.prev()
函數:
$(".btnclass").click(function(){
alert($(this).prev().val());
});
我建議使用$(this).parent().find('.txt')
。 這將始終在與按下按鈕相同的父對象中選擇.txt
元素。
$(".w3-btn").click(function(){ alert($(this).parent().find('.txt').val()); });
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <div> <textarea rows="4" cols="50" name="comment" class="txt" form="usrform"> Enter text here...IRCTC Checked Template</textarea> <button class="w3-btn w3-blue w3-border-black w3-card-24 w3-hover-green btnclass" id="btn" name="b">Send</button> </div> <h3>ID Created Template</h3> <div> <textarea rows="4" cols="50" name="comment" class="txt" form="usrform"> Enter text here... ID Created Template</textarea> <button class="w3-btn w3-blue w3-border-black w3-card-24 w3-hover-green btnclass" id="btn" name="b">Send</button> </div>
$(".btnclass").click(function(){
alert($(this).prev().val());
});
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