choose a value from the drop-down menu in real-time

Question

choose a value from the drop-down menu in real-time

Below is a dropdown list I am working with:

<select name="selSS1" id="select_value">
    <option value="val0">sea zero</option>
    <option value="val1">sea one</option>
    <option value="val2">sea two</option>
    <option value="val3">sea three</option>
    <option value="val4">sea four</option>
</select>

I am looking to use JavaScript to dynamically select a value from this list:

This is what I tried so far:

document.getElementById('select_value').selected ="val3";

However, the code above does not seem to be functioning as expected. Any assistance would be greatly appreciated.

javascript

Answer 1

Answer №1

To address your issue, make sure to implement the following code snippet:

 document.getElementById('select_value').value ="val3";

or 

    document.getElementById('select_value').selectedIndex = 3;

We hope this successfully resolves the problem for you.

Answer 2

To address your issue, make sure to implement the following code snippet:

 document.getElementById('select_value').value ="val3";

or 

    document.getElementById('select_value').selectedIndex = 3;

We hope this successfully resolves the problem for you.

Answer 3

Answer №2

give it a shot:

let chosenOption = document.getElementById('select_value');
chosenOption.getElementsByTagName('option')[index].setAttribute('selected','selected');

Make sure to replace 'index' with the actual position of the option you wish to select.

Answer 4

give it a shot:

let chosenOption = document.getElementById('select_value');
chosenOption.getElementsByTagName('option')[index].setAttribute('selected','selected');

Make sure to replace 'index' with the actual position of the option you wish to select.

Answer 5

Answer №3

$('#select_value').val('val0');

Answer 6

$('#select_value').val('val0');

Answer 7

Answer №4

Using vanilla JavaScript:

const selectElement = document.querySelector("#select_value");
const selectedValue = selectElement.options[selectElement.selectedIndex].value;

Answer 8

Using vanilla JavaScript:

const selectElement = document.querySelector("#select_value");
const selectedValue = selectElement.options[selectElement.selectedIndex].value;

Answer 9

Answer №5

Give this method a shot:

document.querySelector('#select_value option:nth-of-type(4)').selected;

Answer 10

Give this method a shot:

document.querySelector('#select_value option:nth-of-type(4)').selected;

Answer 11

Answer №6

This code snippet will choose option 3 from a select dropdown:

document.querySelector('#select_value').selectedIndex = 3;

Answer 12

This code snippet will choose option 3 from a select dropdown:

document.querySelector('#select_value').selectedIndex = 3;

Answer 13

Answer №7

To easily set the selected value using a function, you can utilize the following code snippet. By defining this function, you can apply it to any select element for added convenience.

// Basic version

function setChosenValue(select_id,value){

    document.getElementById(select_id).value = value;

}

// Alternatively, an advanced version

function setChosenValue(select_id,value){

    var mySelect = document.getElementById(select_id);
    var options = mySelect.options;
    var key;
    for(key in options){

        if(options[key].value===value){
            options[key].setAttribute("selected","");
        }
        else
            options[key].removeAttribute("selected");
    }
}

For your specific scenario:

setChosenValue("select_value","val3");

Answer 14

To easily set the selected value using a function, you can utilize the following code snippet. By defining this function, you can apply it to any select element for added convenience.

// Basic version

function setChosenValue(select_id,value){

    document.getElementById(select_id).value = value;

}

// Alternatively, an advanced version

function setChosenValue(select_id,value){

    var mySelect = document.getElementById(select_id);
    var options = mySelect.options;
    var key;
    for(key in options){

        if(options[key].value===value){
            options[key].setAttribute("selected","");
        }
        else
            options[key].removeAttribute("selected");
    }
}

For your specific scenario:

setChosenValue("select_value","val3");

choose a value from the drop-down menu in real-time

Answer №1

Answer №2

Answer №3

Answer №4

Answer №5

Answer №6

Answer №7

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