jQuery 如何在更改事件中使用广播？

How to use radio on change event?

提问by Ashish Mehta

I have two radio button on change event i want change button How it is possible? My Code

我有两个关于更改事件的单选按钮我想要更改按钮 这怎么可能？我的代码

<input type="radio" name="bedStatus" id="allot" checked="checked" value="allot">Allot
<input type="radio" name="bedStatus" id="transfer" value="transfer">Transfer

Script

脚本

<script>
    $(document).ready(function () {
        $('input:radio[name=bedStatus]:checked').change(function () {
            if ($("input[name='bedStatus']:checked").val() == 'allot') {
                alert("Allot Thai Gayo Bhai");
            }
            if ($("input[name='bedStatus']:checked").val() == 'transfer') {
                alert("Transfer Thai Gayo");
            }
        });
    });
</script>

回答by undefined

You can use thiswhich refers to the current inputelement.

您可以使用thiswhich 引用当前input元素。

$('input[type=radio][name=bedStatus]').change(function() {
    if (this.value == 'allot') {
        alert("Allot Thai Gayo Bhai");
    }
    else if (this.value == 'transfer') {
        alert("Transfer Thai Gayo");
    }
});

http://jsfiddle.net/4gZAT/

http://jsfiddle.net/4gZAT/

Note that you are comparing the value against allotin both if statements and :radioselector is deprecated.

请注意，您正在比较allotif 语句和:radio选择器中的值已弃用。

In case that you are not using jQuery, you can use the document.querySelectorAlland HTMLElement.addEventListenermethods:

如果您不使用 jQuery，则可以使用document.querySelectorAll和HTMLElement.addEventListener方法：

var radios = document.querySelectorAll('input[type=radio][name="bedStatus"]');

function changeHandler(event) {
   if ( this.value === 'allot' ) {
     console.log('value', 'allot');
   } else if ( this.value === 'transfer' ) {
      console.log('value', 'transfer');
   }  
}

Array.prototype.forEach.call(radios, function(radio) {
   radio.addEventListener('change', changeHandler);
});

回答by Ohgodwhy

An adaptation of the above answer...

对上述答案的改编......

$('input[type=radio][name=bedStatus]').on('change', function() {
  switch ($(this).val()) {
    case 'allot':
      alert("Allot Thai Gayo Bhai");
      break;
    case 'transfer':
      alert("Transfer Thai Gayo");
      break;
  }
});

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<input type="radio" name="bedStatus" id="allot" checked="checked" value="allot">Allot
<input type="radio" name="bedStatus" id="transfer" value="transfer">Transfer

http://jsfiddle.net/xwYx9

http://jsfiddle.net/xwYx9

回答by RageAgainstTheMachine

A simpler and cleaner way would be to use a class with @Ohgodwhy's answer

一种更简单、更简洁的方法是使用带有@Ohgodwhy 答案的类

<input ... class="rButton">
<input ... class="rButton">

Script

脚本

?$( ".rButton" ).change(function() {
    switch($(this).val()) {
        case 'allot' :
            alert("Allot Thai Gayo Bhai");
            break;
        case 'transfer' :
            alert("Transfer Thai Gayo");
            break;
    }            
});?

回答by bromelio

$(document).ready(function () {
    $('#allot').click(function () {
        if ($(this).is(':checked')) {
            alert("Allot Thai Gayo Bhai");
        }
    });

    $('#transfer').click(function () {
        if ($(this).is(':checked')) {
            alert("Transfer Thai Gayo");
        }
    });
});

JS Fiddle

JS小提琴

回答by sandeep kumar

Use onchagefunction

使用onchage功能

<input type="radio" name="bedStatus" id="allot" checked="checked" value="allot" onchange="my_function('allot')">Allot
<input type="radio" name="bedStatus" id="transfer" value="transfer" onchange="my_function('transfer')">Transfer

<script>
 function my_function(val){
    alert(val);
 }
</script>

回答by Simon Arnold

Simple ES6(javascript only)solution.

简单的ES6 （仅限 JavaScript）解决方案。

document.forms.demo.bedStatus.forEach(radio => {
  radio.addEventListener('change', () => {
    alert(`${document.forms.demo.bedStatus.value} Thai Gayo`);
  })
});

<form name="demo">
  <input type="radio" name="bedStatus" value="Allot" checked>Allot
  <input type="radio" name="bedStatus" value="Transfer">Transfer
</form>

回答by Piterden

document.addEventListener('DOMContentLoaded', () => {
  const els = document.querySelectorAll('[name="bedStatus"]');

  const capitalize = (str) =>
    `${str.charAt(0).toUpperCase()}${str.slice(1)}`;

  const handler = (e) => alert(
    `${capitalize(e.target.value)} Thai Gayo${e.target.value === 'allot' ? ' Bhai' : ''}`
  );

  els.forEach((el) => {
    el.addEventListener('change', handler);
  });
});

回答by StripyTiger

If the radio buttons are added dynamically, you may wish to use this

如果单选按钮是动态添加的，你可能希望使用这个

$(document).on('change', 'input[type=radio][name=bedStatus]', function (event) {
    switch($(this).val()) {
      case 'allot' :
        alert("Allot Thai Gayo Bhai");
        break;
      case 'transfer' :
        alert("Transfer Thai Gayo");
        break;
    }     
});

回答by Gupta Nambula

<input type="radio" name="radio"  value="upi">upi
<input type="radio" name="radio"  value="bankAcc">Bank

<script type="text/javascript">
$(document).ready(function() {
 $('input[type=radio][name=radio]').change(function() {
   if (this.value == 'upi') {
    //write your logic here

    }
  else if (this.value == 'bankAcc') {
    //write your logic here
 }
 });
 </script>

回答by Ram Samuj

$(document).ready(function () {
    $('input:radio[name=bedStatus]:checked').change(function () {
        if ($("input:radio[name='bedStatus']:checked").val() == 'allot') {
            alert("Allot Thai Gayo Bhai");
        }
        if ($("input:radio[name='bedStatus']:checked").val() == 'transfer') {
            alert("Transfer Thai Gayo");
        }
    });
});