Select the option based on value

M trying to do some DOM manipulation where I want to select the dropdown option based on the value :

$(this).parent().parent().find("select[name*='weight_prefix']").each(function() {

    $(this)[0].selectedIndex = 0;

});

Here it's selecting based on the index, How do I do it based on value, for example
select the option where value is '+'

   <select name="product_option[0][product_option_value][0][weight_prefix]" class="form-control">

       <option value="=">=</option>

       <option value="+">+</option>

       <option value="-" selected="selected">-</option>

   </select>

edited Nov 28 '18 at 14:47

connexo

22.8k83762

asked Nov 25 '18 at 20:41

H Simla

add a comment |

M trying to do some DOM manipulation where I want to select the dropdown option based on the value :

$(this).parent().parent().find("select[name*='weight_prefix']").each(function() {

    $(this)[0].selectedIndex = 0;

});

Here it's selecting based on the index, How do I do it based on value, for example
select the option where value is '+'

   <select name="product_option[0][product_option_value][0][weight_prefix]" class="form-control">

       <option value="=">=</option>

       <option value="+">+</option>

       <option value="-" selected="selected">-</option>

   </select>

edited Nov 28 '18 at 14:47

connexo

22.8k83762

asked Nov 25 '18 at 20:41

H Simla

add a comment |

M trying to do some DOM manipulation where I want to select the dropdown option based on the value :

$(this).parent().parent().find("select[name*='weight_prefix']").each(function() {

    $(this)[0].selectedIndex = 0;

});

Here it's selecting based on the index, How do I do it based on value, for example
select the option where value is '+'

   <select name="product_option[0][product_option_value][0][weight_prefix]" class="form-control">

       <option value="=">=</option>

       <option value="+">+</option>

       <option value="-" selected="selected">-</option>

   </select>

edited Nov 28 '18 at 14:47

connexo

22.8k83762

asked Nov 25 '18 at 20:41

H Simla

M trying to do some DOM manipulation where I want to select the dropdown option based on the value :

$(this).parent().parent().find("select[name*='weight_prefix']").each(function() {

    $(this)[0].selectedIndex = 0;

});

Here it's selecting based on the index, How do I do it based on value, for example
select the option where value is '+'

   <select name="product_option[0][product_option_value][0][weight_prefix]" class="form-control">

       <option value="=">=</option>

       <option value="+">+</option>

       <option value="-" selected="selected">-</option>

   </select>

jquery

edited Nov 28 '18 at 14:47

connexo

22.8k83762

asked Nov 25 '18 at 20:41

H Simla

edited Nov 28 '18 at 14:47

connexo

22.8k83762

asked Nov 25 '18 at 20:41

H Simla

edited Nov 28 '18 at 14:47

connexo

22.8k83762

edited Nov 28 '18 at 14:47

connexo

22.8k83762

edited Nov 28 '18 at 14:47

connexo

22.8k83762

asked Nov 25 '18 at 20:41

H Simla

asked Nov 25 '18 at 20:41

H Simla

asked Nov 25 '18 at 20:41

H Simla

add a comment |

2 Answers
2

active

oldest

votes

You could use val() :

$("select[name*='weight_prefix']").val("=");

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

<select name="product_option[0][product_option_value][0][weight_prefix]" class="form-control">

  <option value="=">=</option>

  <option value="+">+</option>

  <option value="-" selected="selected">-</option>

</select>

edited Nov 25 '18 at 21:01

answered Nov 25 '18 at 20:43

Zakaria Acharki

55.8k134471

add a comment |

You don't need any jQuery for this. Just go with plain simple vanilla Javascript and set the value of the select element:

document.querySelector('[name="product_option[0][product_option_value][0][weight_prefix]"').value = "+";

<select name="product_option[0][product_option_value][0][weight_prefix]" class="form-control">

  <option value="=">=</option>

  <option value="+">+</option>

  <option value="-" selected="selected">-</option>

</select>

If you have more than one (which your selector and using each() suggests), here you go:

[...document.querySelectorAll('[name*="[weight_prefix]"')].forEach(x => x.value = "=")

<select name="product_option[0][product_option_value][0][weight_prefix]" class="form-control">

  <option value="=">=</option>

  <option value="+">+</option>

  <option value="-" selected="selected">-</option>

</select>





<select name="product_option[0][product_option_value][1][weight_prefix]" class="form-control">

  <option value="=">=</option>

  <option value="+">+</option>

  <option value="-" selected="selected">-</option>

</select>



<select name="product_option[0][product_option_value][2][weight_prefix]" class="form-control">

  <option value="=">=</option>

  <option value="+" selected="selected">+</option>

  <option value="-">-</option>

</select>

document.querySelectorAll('[name*="[weight_prefix]"') gets you a NodeList (similar to an Array) containing the matched select elements.

[...document.querySelectorAll('[name*="[weight_prefix]"')] pulls your NodeList members into an actual array (this is called rest spread, a feature introduced with ECMAScript 2015 (also known as ES6)), so you can use the Array-method forEach() on the NodeList to iterate over the list.

You pass an arrow function to forEach(): x => x.value = '=' (which is almost the same as writing function(x) { x.value = '=' }).

edited Nov 25 '18 at 21:02

answered Nov 25 '18 at 20:55

connexo

22.8k83762

Great Answer.........

– H Simla
Nov 25 '18 at 21:14

add a comment |

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2 Answers
2

active

oldest

votes

2 Answers
2

active

oldest

votes

You could use val() :

$("select[name*='weight_prefix']").val("=");

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

<select name="product_option[0][product_option_value][0][weight_prefix]" class="form-control">

  <option value="=">=</option>

  <option value="+">+</option>

  <option value="-" selected="selected">-</option>

</select>

edited Nov 25 '18 at 21:01

answered Nov 25 '18 at 20:43

Zakaria Acharki

55.8k134471

add a comment |

You could use val() :

$("select[name*='weight_prefix']").val("=");

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

<select name="product_option[0][product_option_value][0][weight_prefix]" class="form-control">

  <option value="=">=</option>

  <option value="+">+</option>

  <option value="-" selected="selected">-</option>

</select>

edited Nov 25 '18 at 21:01

answered Nov 25 '18 at 20:43

Zakaria Acharki

55.8k134471

add a comment |

You could use val() :

$("select[name*='weight_prefix']").val("=");

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

<select name="product_option[0][product_option_value][0][weight_prefix]" class="form-control">

  <option value="=">=</option>

  <option value="+">+</option>

  <option value="-" selected="selected">-</option>

</select>

edited Nov 25 '18 at 21:01

answered Nov 25 '18 at 20:43

Zakaria Acharki

55.8k134471

You could use val() :

$("select[name*='weight_prefix']").val("=");

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

<select name="product_option[0][product_option_value][0][weight_prefix]" class="form-control">

  <option value="=">=</option>

  <option value="+">+</option>

  <option value="-" selected="selected">-</option>

</select>

$("select[name*='weight_prefix']").val("=");

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

<select name="product_option[0][product_option_value][0][weight_prefix]" class="form-control">

  <option value="=">=</option>

  <option value="+">+</option>

  <option value="-" selected="selected">-</option>

</select>

$("select[name*='weight_prefix']").val("=");

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

<select name="product_option[0][product_option_value][0][weight_prefix]" class="form-control">

  <option value="=">=</option>

  <option value="+">+</option>

  <option value="-" selected="selected">-</option>

</select>

edited Nov 25 '18 at 21:01

answered Nov 25 '18 at 20:43

Zakaria Acharki

55.8k134471

edited Nov 25 '18 at 21:01

answered Nov 25 '18 at 20:43

Zakaria Acharki

55.8k134471

answered Nov 25 '18 at 20:43

Zakaria Acharki

55.8k134471

answered Nov 25 '18 at 20:43

Zakaria Acharki

55.8k134471

add a comment |

You don't need any jQuery for this. Just go with plain simple vanilla Javascript and set the value of the select element:

document.querySelector('[name="product_option[0][product_option_value][0][weight_prefix]"').value = "+";

<select name="product_option[0][product_option_value][0][weight_prefix]" class="form-control">

  <option value="=">=</option>

  <option value="+">+</option>

  <option value="-" selected="selected">-</option>

</select>

If you have more than one (which your selector and using each() suggests), here you go:

[...document.querySelectorAll('[name*="[weight_prefix]"')].forEach(x => x.value = "=")

<select name="product_option[0][product_option_value][0][weight_prefix]" class="form-control">

  <option value="=">=</option>

  <option value="+">+</option>

  <option value="-" selected="selected">-</option>

</select>





<select name="product_option[0][product_option_value][1][weight_prefix]" class="form-control">

  <option value="=">=</option>

  <option value="+">+</option>

  <option value="-" selected="selected">-</option>

</select>



<select name="product_option[0][product_option_value][2][weight_prefix]" class="form-control">

  <option value="=">=</option>

  <option value="+" selected="selected">+</option>

  <option value="-">-</option>

</select>

document.querySelectorAll('[name*="[weight_prefix]"') gets you a NodeList (similar to an Array) containing the matched select elements.

[...document.querySelectorAll('[name*="[weight_prefix]"')] pulls your NodeList members into an actual array (this is called rest spread, a feature introduced with ECMAScript 2015 (also known as ES6)), so you can use the Array-method forEach() on the NodeList to iterate over the list.

You pass an arrow function to forEach(): x => x.value = '=' (which is almost the same as writing function(x) { x.value = '=' }).

edited Nov 25 '18 at 21:02

answered Nov 25 '18 at 20:55

connexo

22.8k83762

Great Answer.........

– H Simla
Nov 25 '18 at 21:14

add a comment |

You don't need any jQuery for this. Just go with plain simple vanilla Javascript and set the value of the select element:

document.querySelector('[name="product_option[0][product_option_value][0][weight_prefix]"').value = "+";

<select name="product_option[0][product_option_value][0][weight_prefix]" class="form-control">

  <option value="=">=</option>

  <option value="+">+</option>

  <option value="-" selected="selected">-</option>

</select>

If you have more than one (which your selector and using each() suggests), here you go:

[...document.querySelectorAll('[name*="[weight_prefix]"')].forEach(x => x.value = "=")

<select name="product_option[0][product_option_value][0][weight_prefix]" class="form-control">

  <option value="=">=</option>

  <option value="+">+</option>

  <option value="-" selected="selected">-</option>

</select>





<select name="product_option[0][product_option_value][1][weight_prefix]" class="form-control">

  <option value="=">=</option>

  <option value="+">+</option>

  <option value="-" selected="selected">-</option>

</select>



<select name="product_option[0][product_option_value][2][weight_prefix]" class="form-control">

  <option value="=">=</option>

  <option value="+" selected="selected">+</option>

  <option value="-">-</option>

</select>

document.querySelectorAll('[name*="[weight_prefix]"') gets you a NodeList (similar to an Array) containing the matched select elements.

[...document.querySelectorAll('[name*="[weight_prefix]"')] pulls your NodeList members into an actual array (this is called rest spread, a feature introduced with ECMAScript 2015 (also known as ES6)), so you can use the Array-method forEach() on the NodeList to iterate over the list.

You pass an arrow function to forEach(): x => x.value = '=' (which is almost the same as writing function(x) { x.value = '=' }).

edited Nov 25 '18 at 21:02

answered Nov 25 '18 at 20:55

connexo

22.8k83762

Great Answer.........

– H Simla
Nov 25 '18 at 21:14

add a comment |

You don't need any jQuery for this. Just go with plain simple vanilla Javascript and set the value of the select element:

document.querySelector('[name="product_option[0][product_option_value][0][weight_prefix]"').value = "+";

<select name="product_option[0][product_option_value][0][weight_prefix]" class="form-control">

  <option value="=">=</option>

  <option value="+">+</option>

  <option value="-" selected="selected">-</option>

</select>

If you have more than one (which your selector and using each() suggests), here you go:

[...document.querySelectorAll('[name*="[weight_prefix]"')].forEach(x => x.value = "=")

<select name="product_option[0][product_option_value][0][weight_prefix]" class="form-control">

  <option value="=">=</option>

  <option value="+">+</option>

  <option value="-" selected="selected">-</option>

</select>





<select name="product_option[0][product_option_value][1][weight_prefix]" class="form-control">

  <option value="=">=</option>

  <option value="+">+</option>

  <option value="-" selected="selected">-</option>

</select>



<select name="product_option[0][product_option_value][2][weight_prefix]" class="form-control">

  <option value="=">=</option>

  <option value="+" selected="selected">+</option>

  <option value="-">-</option>

</select>

document.querySelectorAll('[name*="[weight_prefix]"') gets you a NodeList (similar to an Array) containing the matched select elements.

[...document.querySelectorAll('[name*="[weight_prefix]"')] pulls your NodeList members into an actual array (this is called rest spread, a feature introduced with ECMAScript 2015 (also known as ES6)), so you can use the Array-method forEach() on the NodeList to iterate over the list.

You pass an arrow function to forEach(): x => x.value = '=' (which is almost the same as writing function(x) { x.value = '=' }).

edited Nov 25 '18 at 21:02

answered Nov 25 '18 at 20:55

connexo

22.8k83762

You don't need any jQuery for this. Just go with plain simple vanilla Javascript and set the value of the select element:

document.querySelector('[name="product_option[0][product_option_value][0][weight_prefix]"').value = "+";

<select name="product_option[0][product_option_value][0][weight_prefix]" class="form-control">

  <option value="=">=</option>

  <option value="+">+</option>

  <option value="-" selected="selected">-</option>

</select>

If you have more than one (which your selector and using each() suggests), here you go:

[...document.querySelectorAll('[name*="[weight_prefix]"')].forEach(x => x.value = "=")

<select name="product_option[0][product_option_value][0][weight_prefix]" class="form-control">

  <option value="=">=</option>

  <option value="+">+</option>

  <option value="-" selected="selected">-</option>

</select>





<select name="product_option[0][product_option_value][1][weight_prefix]" class="form-control">

  <option value="=">=</option>

  <option value="+">+</option>

  <option value="-" selected="selected">-</option>

</select>



<select name="product_option[0][product_option_value][2][weight_prefix]" class="form-control">

  <option value="=">=</option>

  <option value="+" selected="selected">+</option>

  <option value="-">-</option>

</select>

document.querySelectorAll('[name*="[weight_prefix]"') gets you a NodeList (similar to an Array) containing the matched select elements.

[...document.querySelectorAll('[name*="[weight_prefix]"')] pulls your NodeList members into an actual array (this is called rest spread, a feature introduced with ECMAScript 2015 (also known as ES6)), so you can use the Array-method forEach() on the NodeList to iterate over the list.

You pass an arrow function to forEach(): x => x.value = '=' (which is almost the same as writing function(x) { x.value = '=' }).

document.querySelector('[name="product_option[0][product_option_value][0][weight_prefix]"').value = "+";

<select name="product_option[0][product_option_value][0][weight_prefix]" class="form-control">

  <option value="=">=</option>

  <option value="+">+</option>

  <option value="-" selected="selected">-</option>

</select>

document.querySelector('[name="product_option[0][product_option_value][0][weight_prefix]"').value = "+";

<select name="product_option[0][product_option_value][0][weight_prefix]" class="form-control">

  <option value="=">=</option>

  <option value="+">+</option>

  <option value="-" selected="selected">-</option>

</select>

[...document.querySelectorAll('[name*="[weight_prefix]"')].forEach(x => x.value = "=")

<select name="product_option[0][product_option_value][0][weight_prefix]" class="form-control">

  <option value="=">=</option>

  <option value="+">+</option>

  <option value="-" selected="selected">-</option>

</select>





<select name="product_option[0][product_option_value][1][weight_prefix]" class="form-control">

  <option value="=">=</option>

  <option value="+">+</option>

  <option value="-" selected="selected">-</option>

</select>



<select name="product_option[0][product_option_value][2][weight_prefix]" class="form-control">

  <option value="=">=</option>

  <option value="+" selected="selected">+</option>

  <option value="-">-</option>

</select>

[...document.querySelectorAll('[name*="[weight_prefix]"')].forEach(x => x.value = "=")

<select name="product_option[0][product_option_value][0][weight_prefix]" class="form-control">

  <option value="=">=</option>

  <option value="+">+</option>

  <option value="-" selected="selected">-</option>

</select>





<select name="product_option[0][product_option_value][1][weight_prefix]" class="form-control">

  <option value="=">=</option>

  <option value="+">+</option>

  <option value="-" selected="selected">-</option>

</select>



<select name="product_option[0][product_option_value][2][weight_prefix]" class="form-control">

  <option value="=">=</option>

  <option value="+" selected="selected">+</option>

  <option value="-">-</option>

</select>

edited Nov 25 '18 at 21:02

answered Nov 25 '18 at 20:55

connexo

22.8k83762

edited Nov 25 '18 at 21:02

answered Nov 25 '18 at 20:55

connexo

22.8k83762

answered Nov 25 '18 at 20:55

connexo

22.8k83762

answered Nov 25 '18 at 20:55

connexo

22.8k83762

Great Answer.........

– H Simla
Nov 25 '18 at 21:14

add a comment |

Great Answer.........

– H Simla
Nov 25 '18 at 21:14

Great Answer.........

– H Simla
Nov 25 '18 at 21:14

add a comment |

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